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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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 Posted: Dec 08, 2022 12:45 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Siderite and Quartz |
| Locality: | | Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District, Kosovo |  |
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| Dimensions: | 4.0 x 7.0 x 7.0 cm |
| Description: |
| A combination of prismatic white quartz, spherical brown siderite, and dark green chlorite. The terminations on some of the quartz crystals have unusual clear zones. |
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8673 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 11, 2022 10:54 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Copper |
| Locality: | | Chino Mine, Santa Rita, Santa Rita District, Grant County, New Mexico, USA | |
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| Dimensions: | 4.1 x 1.2 cm |
| Description: |
| An elongate spinel-twinned copper crystal from the 5100 Bench, East Pit with a nice patina and darker areas of cuprite. |
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| Viewed: |
8431 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 15, 2022 09:27 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Gypsum |
| Locality: | | Naica Mine, Naica, Municipio Saucillo, Chihuahua, Mexico | |
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| Dimensions: | 6.8 x 5.4 x 4.4 cm |
| Description: |
| Sharp water-clear gypsum crystals on a mound of golden scalenohedral calcite crystals. |
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| Viewed: |
8224 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Dec 16, 2022 03:06 Post subject: Re: Collection of Michael Shaw |
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| Lovely gypsum!!!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 16, 2022 12:44 Post subject: Re: Collection of Michael Shaw |
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| Tobi wrote: | | Lovely gypsum!!! |
Thank you, Tobi. Where we live there is not a great variety of minerals to be collected, but there is no shortage of Gypsum. I have collected Gypsum specimens from 5 or 6 localities in Oklahoma, and the habits are quite distinct. Years ago, I focused somewhat on building a suite of Gypsum from around the world since it was ubiquitous and relatively inexpensive. That suite now includes 83 Gypsum specimens from 52 different localities. It was fun building that suite, and I have used it several times for various programs and displays. Occasionally, I will come across a Gypsum specimen from a locality that is not represented in the collection, and I will add another piece to the suite.
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Dec 19, 2022 03:39 Post subject: Re: Collection of Michael Shaw |
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| Michael Shaw wrote: | | Thank you, Tobi. Where we live there is not a great variety of minerals to be collected, but there is no shortage of Gypsum. I have collected Gypsum specimens from 5 or 6 localities in Oklahoma, and the habits are quite distinct. Years ago, I focused somewhat on building a suite of Gypsum from around the world since it was ubiquitous and relatively inexpensive. That suite now includes 83 Gypsum specimens from 52 different localities. It was fun building that suite, and I have used it several times for various programs and displays. Occasionally, I will come across a Gypsum specimen from a locality that is not represented in the collection, and I will add another piece to the suite. |
I don't have a gypsum in my collection at the moment but it's a mineral that I do like. Not one of my favourites, but I like it. And when I come across the right specimen I would definitely add it to my collection. There are several localities that are interesting for me; Naica/Mexico, Cavnic/Romania, Fuentes de Ebro in Spain and the German locality Zimmersrode not far from where I live. Your Naica piece above is for sure one I would have chosen too!
Best regards
Tobi
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1463
Location: Cambridge
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| Posted: Dec 19, 2022 06:58 Post subject: Re: Collection of Michael Shaw |
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Tobi
Have a look at this one from Fuentes del Ebro
https://www.mineral-forum.com/message-board/viewtopic.php?p=35551#35551
| Tobi wrote: | I don't have a gypsum in my collection at the moment but it's a mineral that I do like. Not one of my favourites, but I like it. And when I come across the right specimen I would definitely add it to my collection. There are several localities that are interesting for me; Naica/Mexico, Cavnic/Romania, Fuentes de Ebro in Spain and the German locality Zimmersrode not far from where I live. Your Naica piece above is for sure one I would have chosen too!
Best regards
Tobi |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Dec 19, 2022 08:07 Post subject: Re: Collection of Michael Shaw |
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| A nice one, James, but the story connected with that specimens kills the joy of looking at it. I hope you got over it and can enjoy this beautiful piece.
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1463
Location: Cambridge
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| Posted: Dec 19, 2022 08:23 Post subject: Re: Collection of Michael Shaw |
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Tobi
As I said, it is bitter-sweet. I love it but still feel sad (30 years later)
James
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 19, 2022 10:08 Post subject: Re: Collection of Michael Shaw |
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James' story about his gypsum specimen reminded me that sometimes the history or story associated with a specimen eclipses the specimen itself. Such is the case with the specimen below.
This Chabazite once belonged to the Austrian mineral collector Moritz Lechner (1850-1903). Lechner's collection included other earlier well-known European collections. His collection of roughly 7,000 specimens passed to his son Adolph (1882-1952) upon his death. Shortly before Adoph's death, Austrian dealer Anton Berger purchased the collection and distributed about half of the specimens in the U.S., some through Willard Perkins in California and the majority through Schortmann’s Minerals. The brothers, Raymond and Alvin Schortmann ran a mineral business in Easthampton, Massachusetts about an hour from where I grew up. As a young collector, I visited their shop several times during the early 1960s and always managed to come away with fantastic treasures, most of which I still have today. Unlike James' sad story, this specimen evokes wonderful memories for me perusing the mineral specimens in their little shop.
| Mineral: | Chabazite-Ca (variety phacolite) |
| Locality: | | Csódi Hill, Dunabogdány, Szentendre District, Pest County, Közép-Magyarország Region, Hungary | |
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| Dimensions: | 8.3 x 6.2 x 4.6 cm |
| Description: |
| An old chabazite var. phacolite specimen consisting of lustrous pink crystals covering a blocky brown matrix. |
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| Viewed: |
15361 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 21, 2022 09:01 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | Surprise Mine #2, Cookes Peak District, Luna County, New Mexico, USA | |
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| Dimensions: | 5.6 x 5.5 x 3.4 cm |
| Description: |
| Octahedral purple fluorite crystals with green cores to 2.6 cm on edge with minor white calcite. The underside shows a 1st generation of colorless cubic fluorite crystals. |
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| Viewed: |
15256 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 23, 2022 09:44 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Admiralty Mine, Picher Field, Picher, Tri-State District, Ottawa County, Oklahoma, USA | |
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| Dimensions: | 7.0 x 5.9 x 5.2 cm |
| Description: |
| Several pale honey-colored scalenohedral calcite crystals, with one dominant crystal measuring 5.8 cm in length on chert breccia fragments. |
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| Viewed: |
15091 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 26, 2022 09:54 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorapophyllite-(K) on Heulandite-Ca |
| Locality: | | Pada Quarry, Mumbai District, Maharashtra, India | |
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| Dimensions: | 9.6 x 6.2 x 4.6 cm |
| Description: |
| Two colorless pseudo-cubic apophyllite crystals with minor stilbite lying on a thin bed of pink heulandite crystals covering a brown basalt matrix. Collected from the Pada Quarry. |
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| Viewed: |
15015 Time(s) |
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| Mineral: | Fluorapophyllite-(K) on Heulandite-Ca |
| Locality: | | Pada Quarry, Mumbai District, Maharashtra, India | |
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| Dimensions: | 9.6 x 6.2 x 4.6 cm |
| Description: |
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| Viewed: |
14946 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 29, 2022 11:18 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Mimetite and Hemimorphite |
| Locality: | | Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico | |
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| Dimensions: | 10.2 x 6.8 x 4.1 cm |
| Description: |
| Aggregates of bright yellow mimetite crystals with fanlike sprays of colorless hemimorphite on a dark brown gossan matrix. |
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| Viewed: |
14920 Time(s) |
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| Mineral: | Hemimorphite and Mimetite |
| Locality: | | Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico | |
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| Dimensions: | 10.2 x 6.8 x 4.1 cm |
| Description: |
| Detailed view of crystals. |
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| Viewed: |
14930 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2229
Location: Oklahoma
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| Posted: Dec 31, 2022 11:03 Post subject: Re: Collection of Michael Shaw - Dalnegorsk |
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I'll end the year with this piece from Dalnegorsk.
| Mineral: | Calcite |
| Locality: | | Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia | |
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| Dimensions: | 7.8 x 5.4 x 4.9 cm |
| Description: |
| Branching growth of colorless to pale pink manganoan calcite crystals. |
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| Viewed: |
14853 Time(s) |
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| Mineral: | Calcite |
| Locality: | | Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia | |
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| Dimensions: | 7.8 x 5.4 x 4.9 cm |
| Description: |
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| Viewed: |
14844 Time(s) |
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