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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: May 12, 2022 16:36 Post subject: Siderite - Silvia's Collection |
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Partly iridescent discoidal Siderite crystals with pyrite.
Mineral: | Siderite, Pyrite, Quartz |
Locality: | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Dimensions: | 110 mm x 80 mm x 70 mm |
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12209 Time(s) |
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Mineral: | Siderite, Pyrite, Quartz |
Locality: | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Dimensions: | 110 mm x 80 mm x 70 mm |
Description: |
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12204 Time(s) |
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Mineral: | Siderite, Pyrite, Quartz |
Locality: | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Dimensions: | 110 mm x 80 mm x 70 mm |
Description: |
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12182 Time(s) |
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Mineral: | Siderite, Pyrite, Quartz |
Locality: | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Dimensions: | 110 mm x 80 mm x 70 mm |
Description: |
Detail of the crystals - Quartz |
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12213 Time(s) |
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Mineral: | Siderite, Pyrite, Quartz |
Locality: | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Dimensions: | 110 mm x 80 mm x 70 mm |
Description: |
Detail of the crystals - Pyrite |
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12192 Time(s) |
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Mineral: | - |
Locality: | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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Description: |
Inside the processing plant. |
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12214 Time(s) |
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Firmo Espinar
Joined: 05 Apr 2017
Posts: 755
Location: Medellín, Colombia.
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Posted: May 12, 2022 17:12 Post subject: Re: Silvia's Collection |
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Hi Silvia.
This siderite has a wonderful and very nice first sight.
Congratulations.
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: May 13, 2022 16:53 Post subject: Re: Silvia's Collection |
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Firmo Espinar wrote: | Hi Silvia.
This siderite has a wonderful and very nice first sight.
Congratulations. |
Many thanks for your kind words. I do appreciate the vote of confidence. It was not an easy mineral to photograph, and I took many photos until i was happy.
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: May 15, 2022 17:34 Post subject: Gilbert Gauthier - Silvia's Collection |
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Malachite stalagmites coated with a second generation of Malachite microcrystals.
Mineral: | Malachite, Cuprite |
Locality: | Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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Dimensions: | 10 cm x 8 cm x 6 cm |
Description: |
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12029 Time(s) |
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Mineral: | Malachite, Cuprite |
Locality: | Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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Dimensions: | 10 cm x 8 cm x 6 cm |
Description: |
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12040 Time(s) |
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Mineral: | Malachite, Cuprite |
Locality: | Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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Dimensions: | 10 cm x 8 cm x 6 cm |
Description: |
Matrix view - crystalline Malachite intermixed with microcrystalline Cuprite |
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12056 Time(s) |
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Mineral: | Malachite, Cuprite |
Locality: | Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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Dimensions: | 10 cm x 8 cm x 6 cm |
Description: |
Detail of the matrix crystals |
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Viewed: |
12030 Time(s) |
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Mineral: | Malachite, Cuprite |
Locality: | Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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Dimensions: | 10 cm x 8 cm x 6 cm |
Description: |
Detail of the crystallized malachite coating - main Malachite stalagmite |
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12040 Time(s) |
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Mineral: | - |
Locality: | Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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Description: |
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12058 Time(s) |
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Mineral: | - |
Locality: | Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) | |
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Description: |
Musonoi Open Pit
The Musonoi mine has been a locality for many world-class uranium, copper, and cobalt bearing minerals (Oosterbosch et al. 1964, Gauthier et al. 1989). The mine is located in the Democratic Republic of Congo on the outskirts of the mining town of Kolwezi in an area known as the Katanga Copperbelt. The ore-bodies of the Musonoi mine, and the nearby Kamoto mine, have been mined since the beginning of the 20th century for copper and cobalt. Initially, the Musonoi mine was mined for Chalcocite and Digenite.
GAUTHIER, G., FRANÇOIS, A., DELIENS, M. & PIRET, P. (1989): THE URANIUM DEPOSITS OF THE SHABA REGION, ZAÏRE. MINERAL REC. 20, 265-304.
OOSTERBOSCH, R., PICOT, P. & PIERROT, R. (1964): La digenite sélénifère de Musonoï (Katanga). Bull. Soc. fr. Minéral. Cristallogr. 87, 613-617. |
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12059 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: May 22, 2022 18:50 Post subject: Boldut Mine - Silvia's Collection |
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Bright attractive brassy crystals of Chalcopyrite to 1.5 cm in size scattered across the top of the snow white crystallized quartz matrix with platy Calcite.
Mineral: | Chalcopyrite, Quartz, Calcite |
Locality: | Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania | |
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Dimensions: | 16 cm x 15 cm x 7 cm |
Description: |
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11918 Time(s) |
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Mineral: | Chalcopyrite, Quartz, Calcite |
Locality: | Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania | |
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Dimensions: | 16 cm x 15 cm x 7 cm |
Description: |
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11917 Time(s) |
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Mineral: | Chalcopyrite, Quartz, Calcite |
Locality: | Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania | |
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Dimensions: | 16 cm x 15 cm x 7 cm |
Description: |
Detail of some of the Chalcopyrite crystals. |
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11935 Time(s) |
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Mineral: | Chalcopyrite, Quartz, Calcite |
Locality: | Boldut Mine, Cavnic mining area, Cavnic, Maramures, Romania | |
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Dimensions: | 16 cm x 15 cm x 7 cm |
Description: |
Detail of some of the Calcite crystals. |
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11924 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: May 27, 2022 20:43 Post subject: Uranium - Silvia's Collection |
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The specimen comprises a vuggy Quartz matrix hosting many well-formed crystals of Meta-Torbernite.
Usually Meta-torbernite is a dehydration pseudomorph of Torbernite. However the specimens from El Sherana were formed by direct deposition from a supersaturated solution, which produced true crystalline Meta-torbernite, with a dark green colour, translucent diaphaneity and a vitreous lustre.
Mineral: | Meta-Torbernite |
Locality: | El Sherana Mine, South Alligator River, West Arnhem Region, Northern Territory, Australia | |
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Dimensions: | 80 mm x 70 mm x 60 mm |
Description: |
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Viewed: |
11820 Time(s) |
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Mineral: | Meta-Torbernite |
Locality: | El Sherana Mine, South Alligator River, West Arnhem Region, Northern Territory, Australia | |
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Dimensions: | 80 mm x 70 mm x 60 mm |
Description: |
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Viewed: |
11855 Time(s) |
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Mineral: | Meta-Torbernite |
Locality: | El Sherana Mine, South Alligator River, West Arnhem Region, Northern Territory, Australia | |
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Dimensions: | 80 mm x 70 mm x 60 mm |
Description: |
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Viewed: |
11821 Time(s) |
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Mineral: | _ |
Locality: | El Sherana Mine, South Alligator River, West Arnhem Region, Northern Territory, Australia | |
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Description: |
Picture of the camp - courtesy Al Yates |
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11852 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 02, 2022 16:31 Post subject: Classic Minerals - Bisbee - Silvia's Collection |
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A highly lustrous cluster of deep inky-blue Azurite crystals from the classic Bisbee mining district in Cochise County, Arizona, USA. The specimen contains sharp, arrow-shaped terminated Azurite crystals, to about 15 mm long on a limonitic matrix.
Mineral: | Azurite |
Locality: | Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA | |
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Dimensions: | 120 mm x 100 mm x 30 mm |
Description: |
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Viewed: |
11721 Time(s) |
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Mineral: | Azurite |
Locality: | Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA | |
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Dimensions: | 120 mm x 100 mm x 30 mm |
Description: |
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Viewed: |
11708 Time(s) |
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Mineral: | Azurite |
Locality: | Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA | |
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Dimensions: | 120 mm x 100 mm x 30 mm |
Description: |
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Viewed: |
11712 Time(s) |
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Philippe Durand
Joined: 10 May 2016
Posts: 628
Location: Normandie
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Jun 03, 2022 02:30 Post subject: Re: Silvia's Collection |
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Congratulations Silvia, an outstanding specimen from a legendary azurite locality!
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rweaver
Joined: 13 Apr 2009
Posts: 259
Location: Ridgecrest, California
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Posted: Jun 03, 2022 08:34 Post subject: Re: Silvia's Collection |
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A note from Les Presmyk on the Copper Queen location.
As a general statement there are very few verifiable azurites and malachite’s from the Copper Queen mine and the few that I know of are fairly average. The Copper Queen mine only operated from 1884 to 1888, when the Czar and Holbrook mines were developed and opened. In addition, these became the primary specimen producers for the next 10 or 15 years. And, if you have any of my labels saying they are from the Copper Queen, they are wrong. This is the result of the research I did for our book. And I don't remember how many dozens of labels I had to change as well.
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 03, 2022 16:28 Post subject: Re: Silvia's Collection |
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rweaver wrote: | A note from Les Presmyk on the Copper Queen location.
As a general statement there are very few verifiable azurites and malachite’s from the Copper Queen mine and the few that I know of are fairly average. The Copper Queen mine only operated from 1884 to 1888, when the Czar and Holbrook mines were developed and opened. In addition, these became the primary specimen producers for the next 10 or 15 years. And, if you have any of my labels saying they are from the Copper Queen, they are wrong. This is the result of the research I did for our book. And I don't remember how many dozens of labels I had to change as well. |
Dear Les:
Many thanks for your kind words. It would appear that the vendor who sold me the specimen made a mistake, though no labels were provided. I suppose I should re-name the locality as the Czar mine.
Based on the comments of some of the qualified mining historians I have spoken with, the Czar mine is still considered a classic historical locality too.
Many thanks for you cordial comments.
Silvia
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rweaver
Joined: 13 Apr 2009
Posts: 259
Location: Ridgecrest, California
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Posted: Jun 04, 2022 13:53 Post subject: Re: Silvia's Collection |
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silvia wrote: | rweaver wrote: | A note from Les Presmyk on the Copper Queen location.
As a general statement there are very few verifiable azurites and malachite’s from the Copper Queen mine and the few that I know of are fairly average. The Copper Queen mine only operated from 1884 to 1888, when the Czar and Holbrook mines were developed and opened. In addition, these became the primary specimen producers for the next 10 or 15 years. And, if you have any of my labels saying they are from the Copper Queen, they are wrong. This is the result of the research I did for our book. And I don't remember how many dozens of labels I had to change as well. |
Dear Les:
Many thanks for your kind words. It would appear that the vendor who sold me the specimen made a mistake, though no labels were provided. I suppose I should re-name the locality as the Czar mine.
Based on the comments of some of the qualified mining historians I have spoken with, the Czar mine is still considered a classic historical locality too.
Many thanks for you cordial comments.
Silvia |
Actually that was from an e-mail from Les to me correcting some of my labels that were either wrong or I did not have that information available to me. When it comes to Bisbee if you do not have a good location for it just label them Bisbee. A good reference book is called Collecting Arizona, State of Mines, Legacy of Minerals. edited by Terry C. Wallace. I believe this book is still available
___________________________________________________
rweaver wrote: | if you do not have a good location for it just label them Bisbee. |
Fixed as 'Bisbee'
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 04, 2022 16:43 Post subject: Re: Silvia's Collection |
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rweaver wrote: | silvia wrote: | rweaver wrote: | A note from Les Presmyk on the Copper Queen location.
As a general statement there are very few verifiable azurites and malachite’s from the Copper Queen mine and the few that I know of are fairly average. The Copper Queen mine only operated from 1884 to 1888, when the Czar and Holbrook mines were developed and opened. In addition, these became the primary specimen producers for the next 10 or 15 years. And, if you have any of my labels saying they are from the Copper Queen, they are wrong. This is the result of the research I did for our book. And I don't remember how many dozens of labels I had to change as well. |
Dear Les:
Many thanks for your kind words. It would appear that the vendor who sold me the specimen made a mistake, though no labels were provided. I suppose I should re-name the locality as the Czar mine.
Based on the comments of some of the qualified mining historians I have spoken with, the Czar mine is still considered a classic historical locality too.
Many thanks for you cordial comments.
Silvia |
Actually that was from an e-mail from Les to me correcting some of my labels that were either wrong or I did not have that information available to me. When it comes to Bisbee if you do not have a good location for it just label them Bisbee. A good reference book is called Collecting Arizona, State of Mines, Legacy of Minerals. edited by Terry C. Wallace. I believe this book is still available
___________________________________________________
rweaver wrote: | if you do not have a good location for it just label them Bisbee. |
Fixed as 'Bisbee' |
Many thanks for your help.
My partner reviewed the labels again and pointed out to me that the seller gave the locality as the Copper Queen mine, Bisbee.
Does this mean the seller is in error? Who knows, but it does happen!
Reviewing the morphology of Azurite crystals from the general area, I understand that all the major mines in Bisbee were very close to one another; it would appear that the specimen uploaded may have come from the Czar Mine.
Again many thanks for your input.
All the best
Silvia
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 04, 2022 17:02 Post subject: Classic Localities – Burra Burra Mine Australia - Silvia's Collection |
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A superb example of Burra Burra Malachite recovered sometime between 1850 and 1860. The specimen shows the natural high-polish that made Malachite specimens from this locality famous world-wide.
Mineral: | Malachite |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Dimensions: | 80 mm x 60 mm x 40 mm |
Description: |
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Viewed: |
11485 Time(s) |
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Mineral: | Malachite |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Dimensions: | 80 mm x 60 mm x 40 mm |
Description: |
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Viewed: |
11500 Time(s) |
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Mineral: | Malachite |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Dimensions: | 80 mm x 60 mm x 40 mm |
Description: |
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Viewed: |
11483 Time(s) |
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Mineral: | Malachite |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Dimensions: | 80 mm x 60 mm x 40 mm |
Description: |
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Viewed: |
11476 Time(s) |
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Mineral: | - |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Description: |
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11490 Time(s) |
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Mineral: | _ |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Description: |
Pit as it appears today 2022 |
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Viewed: |
11493 Time(s) |
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Mineral: | - |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Description: |
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11475 Time(s) |
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Mineral: | - |
Locality: | Burra, Mount Lofty Ranges, South Australia, Australia | |
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Description: |
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11498 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 12, 2022 15:05 Post subject: Elmwood Mine - Silvia's Collection |
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A large-cabinet specimen comprising two highly lustrous ‘gum-ball’ clusters of ruby-jack Sphalerite crystals with Fluorite on dolostone from the famous Elmwood Mine. The largest ‘gum-ball’ is 100 mm wide.
Mineral: | Sphalerite, Fluorite, Dolomite |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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Dimensions: | 160 mm x 160 mm x 70 mm |
Description: |
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Viewed: |
11230 Time(s) |
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Mineral: | Sphalerite, Fluorite, Dolomite |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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Dimensions: | 160 mm x 160 mm x 70 mm |
Description: |
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Viewed: |
11226 Time(s) |
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Mineral: | Sphalerite, Fluorite, Dolomite |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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Dimensions: | 160 mm x 160 mm x 70 mm |
Description: |
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Viewed: |
11248 Time(s) |
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Mineral: | Sphalerite, Fluorite, Dolomite |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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Dimensions: | 160 mm x 160 mm x 70 mm |
Description: |
Detail of some of the Fluorite crystals. |
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Viewed: |
11223 Time(s) |
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Mineral: | Sphalerite, Fluorite, Dolomite |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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Dimensions: | 160 mm x 160 mm x 70 mm |
Description: |
Detail of some of the Fluorite crystals |
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Viewed: |
11224 Time(s) |
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Mineral: | Sphalerite, Fluorite, Dolomite |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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Dimensions: | 160 mm x 160 mm x 70 mm |
Description: |
Detail of some of the Sphalerite crystals. |
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Viewed: |
11215 Time(s) |
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Mineral: | - |
Locality: | Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA | |
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Description: |
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Viewed: |
11221 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 16, 2022 15:26 Post subject: The magic that was Milpillas - Silvia's Collection |
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A beautiful electric blue cluster of ‘razor’ sharp Azurite blades on a small amount of matrix from the famous Milpillas mine. The largest blade measures 20 mm in length.
Mineral: | Azurite |
Locality: | Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico | |
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Dimensions: | 90 mm x 70 mm x 40 mm |
Description: |
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Viewed: |
11062 Time(s) |
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Mineral: | Azurite |
Locality: | Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico | |
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Dimensions: | 90 mm x 70 mm x 40 mm |
Description: |
Matrrix view. BTW I love my matrix views. It tells so much about the origin of a mineral. |
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Viewed: |
11104 Time(s) |
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Mineral: | - |
Locality: | Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico | |
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Description: |
Aerial view of mine about May 2022 |
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Viewed: |
11066 Time(s) |
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Mineral: | - |
Locality: | Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico | |
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Description: |
Maiin shaft - Courtesy Senhor Ortega.
I have many photos of the Milpillas mine - surface, plant and underground that I hope to share very soon. |
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Viewed: |
11081 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Jun 17, 2022 03:02 Post subject: Re: The magic that was Milpillas - Silvia's Collection |
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Hi Silvia,
as usual, I enjoyed your latest contributions. The specimens and photos are really really nice, the background infos are wonderful and reading your posts shows how much you love mining and minerals, wonderful to see people so passionate and obsessed with details :-)
I like the Elmwood specimen, Elmwood Mine is one of my favourite localities even though it produced only a few common mineral species. I had a very nice Elmwood sphalerite in my collection ( https://www.mineral-forum.com/message-board/viewtopic.php?p=49403#49403 if you like to see it) and though they may stand in the shadow of the top-class fluorites and calcites from that locality, I always like to see a good sphalerite piece from that mine. And your's is a very good one!
silvia wrote: | I have many photos of the Milpillas mine - surface, plant and underground that I hope to share very soon. | Though I'm not that much into azurite, and not that hyped by Milpillas as many other collectors, I would really enjoy to see more. Always exciting to learn more about the surroundings from where our display specimens come, no matter if it's a favourite mineral or locality!
silvia wrote: | Matrix view. BTW I love my matrix views. It tells so much about the origin of a mineral. | Nice to see other collectors enjoying this. I also have several specimens where I love to study the matrix again and again. I like it when you see how the crystallization went through the mother rock, how veins and vugs were filled with the material or how different minerals grew together or in succession.
Thanks for your contributions, I hope there are a lot more to come :-)
Regards
Tobi
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 17, 2022 15:35 Post subject: Re: The magic that was Milpillas - Silvia's Collection |
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Tobi wrote: | Hi Silvia,
as usual, I enjoyed your latest contributions. The specimens and photos are really really nice, the background infos are wonderful and reading your posts shows how much you love mining and minerals, wonderful to see people so passionate and obsessed with details :-)
I like the Elmwood specimen, Elmwood Mine is one of my favourite localities even though it produced only a few common mineral species. I had a very nice Elmwood sphalerite in my collection ( https://www.mineral-forum.com/message-board/viewtopic.php?p=49403#49403 if you like to see it) and though they may stand in the shadow of the top-class fluorites and calcites from that locality, I always like to see a good sphalerite piece from that mine. And your's is a very good one!
silvia wrote: | I have many photos of the Milpillas mine - surface, plant and underground that I hope to share very soon. | Though I'm not that much into azurite, and not that hyped by Milpillas as many other collectors, I would really enjoy to see more. Always exciting to learn more about the surroundings from where our display specimens come, no matter if it's a favourite mineral or locality!
silvia wrote: | Matrix view. BTW I love my matrix views. It tells so much about the origin of a mineral. | Nice to see other collectors enjoying this. I also have several specimens where I love to study the matrix again and again. I like it when you see how the crystallization went through the mother rock, how veins and vugs were filled with the material or how different minerals grew together or in succession.
Thanks for your contributions, I hope there are a lot more to come :-)
Regards
Tobi |
Hello Tobi:
Your kind words are always welcome.
Copper is a key element in our mineral collection. Copper is one of a few transition metal chemical elements that produce a wide array of collector quality minerals.
Milpillas minerals were certainly the object of much marketing hype. At a few of the Tucson mineral shows we attended, we saw Milpillas material selling for greatly inflated prices. We saw some Milpillas specimens composed of druses of Cuprite on matrix selling for $1000’s of USD. We waited a few years, as we knew the Milpillas ore-body would continue to yield good material for at least a decade. It pays to read the scientific literature and the reports issued by the mining companies. We now have a full suite of material from Milpillas obtained at very competitive prices directly from the suppliers.
I looked at your very fine Sphalerite from Elmwood. Sphalerite is also one of our favourite minerals too. We often recommend Sphalerite to new collectors as it is possible to obtain some outstanding specimens at very competitive prices.
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 22, 2022 15:48 Post subject: Romania - Silvia's Collection |
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An aerial group of metallic acicular crystals of Berthierite with growth points clearly visible.
Mineral: | Berthierite |
Locality: | Herja Mine, Chiuzbaia, Baia Sprie, Maramures, Romania | |
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Dimensions: | 8 cm x 4 cm x 4 cm |
Description: |
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10813 Time(s) |
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Mineral: | Berthierite |
Locality: | Herja Mine, Chiuzbaia, Baia Sprie, Maramures, Romania | |
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Dimensions: | 8 cm x 4 cm x 4 cm |
Description: |
Detail of the many crystals present. |
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10829 Time(s) |
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Mineral: | Berthierite |
Locality: | Herja Mine, Chiuzbaia, Baia Sprie, Maramures, Romania | |
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Dimensions: | 8 cm x 4 cm x 4 cm |
Description: |
Detail of the many crystals present - second cluster. |
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10824 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 253
Location: UK
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Posted: Jun 29, 2022 13:51 Post subject: Schorl - Silvia's Collection |
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Two brilliant crystals of Schorl perpendicular to each other.
Mineral: | Schorl |
Locality: | Erongo Mountain, Usakos, Erongo Region, Namibia | |
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Dimensions: | 140 mm x 120 mm x 100 mm |
Description: |
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10555 Time(s) |
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Mineral: | Schorl |
Locality: | Erongo Mountain, Usakos, Erongo Region, Namibia | |
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Dimensions: | 140 mm x 120 mm x 100 mm |
Description: |
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10562 Time(s) |
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