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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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 Posted: Jun 12, 2020 17:05 Post subject: Popular Minerals |
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There are specimens that for whatever reason are the ones that receive the most visits daily. I will be publishing them in this thread.
| Mineral: | Sulphur with Calcite |
| Locality: | | Cozzo Disi Mine, Casteltermini, Agrigento (Girgenti) Province, Sicily, Italy |  |
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| Dimensions: | Specimen size: 9.4 × 7.3 × 6.3 cm = 3.70” × 2.87” × 2.48” / Main crystal size: 3.8 × 3.1 cm = 1.50” × 1.22” |
| Description: |
| Group of Sulphur crystals with a flattened dipyramidal shape. They are on a Calcite matrix. |
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22013 Time(s) |
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Brent Lockhart
Joined: 25 Jan 2012
Posts: 34
Location: Larkspur, Colorado
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| Posted: Jun 12, 2020 17:09 Post subject: Re: Popular Minerals |
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Great idea Jordi, I'll be looking forward to your posts.
Cheers
Brent
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 13, 2020 13:42 Post subject: Popular Minerals - Baryte on Rhodochrosite |
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Baryte on Rhodochrosite
| Mineral: | Baryte on Rhodochrosite |
| Locality: | | Cavnic mining area, Cavnic, Maramures, Romania | |
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| Dimensions: | Specimen size: 13 × 12.4 × 4.2 cm = 5.12” × 4.88” × 1.65” / main crystal size: 2.5 × 1.5 cm = 0.98” × 0.59” |
| Description: |
| Group of flattened rhombohedral Rhodochrosite crystals, very bright and uniform pink color, with small Dolomite crystals and water-clear platy Baryte crystals, completely transparent. |
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21828 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 17, 2020 14:25 Post subject: Popular Minerals - Baryte on Quartz from Pöhla |
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Baryte on Quartz from Pöhla
| Mineral: | Baryte and Quartz |
| Locality: | | Pöhla, Schwarzenberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | Specimen size: 7.2 × 4.2 × 3.6 cm / Main crystal size: 2 × 1 cm |
| Description: |
| Elongated Baryte crystals on matrix, highly profiled and with well defined faces and edges and with the transparency, luster and intensity of color that have made these Barytes famous. From a classic German deposit. |
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21569 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4014
Location: Good Old Germany
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| Posted: Jun 18, 2020 04:06 Post subject: Re: Popular Minerals |
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| Beautiful classic baryte from Saxony :-)
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 18, 2020 16:25 Post subject: Re: Popular Minerals |
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Gold from Uriman, Venezuela
| Mineral: | Gold |
| Locality: | | Uriman, Bolívar State, Venezuela | |
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| Dimensions: | 1.3 × 0.5 × 0.5 cm |
| Description: |
| Group of elongated rhombododecahedral crystals, one of them clearly dominant, with unusually sharp crystalline forms. The morphology of the specimen is very peculiar. |
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21424 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 19, 2020 17:55 Post subject: Popular Minerals - Sphalerite from Trepca |
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Sphalerite with Siderite from Trepča
| Mineral: | Sphalerite with Siderite |
| Locality: | | Stan Trg (Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District, Kosovo | |
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| Dimensions: | Specimen size: 9.1 × 5.4 × 3.3 cm / main crystal size: 2.3 × 1.4 cm |
| Description: |
| Group of twinned Sphalerite crystals, well defined and partially covered by light brown spherulitic-botryoidal Siderite. |
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21349 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 20, 2020 17:43 Post subject: Popular Minerals - Volborthite from Milpillas Mine, Mexico |
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Volborthite from Milpillas Mine, Mexico
| Mineral: | Volborthite with Malachite and Azurite and on Dickite |
| Locality: | | Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico | |
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| Dimensions: | Specimen size: 4.9 × 3.5 × 2.2 cm / main crystal size: 3.3 × 1.4 cm |
| Description: |
Photo: Joaquim Callén
The Volborthites of Milpillas are among the most spectacular discoveries that have happened in the mineral world in recent years. In general they are of an enormous quality and in aspects this great rosette of crystals with Malachite and on matrix stands out among others. |
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21115 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 24, 2020 17:21 Post subject: Erythrite from the type locality, Schneeberg |
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Erythrite with Quartz - Schneeberg District, Saxony, Germany
| Mineral: | Erythrite with Quartz |
| Locality: | | Schneeberg District, Erzgebirgskreis, Saxony/Sachsen, Germany | |
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| Dimensions: | Specimen size: 9.2 × 5.7 × 5.3 cm / main crystal size: 3 × 1.2 cm |
| Description: |
| Centered aggregate of acicular Erythrite crystals, with the habit, brilliance and presentation that have made the Schneeberg Erythrites famous. This is the type locality for the species. The specimen, apart from being classic, also has a long pedigree documented in its accompanying label record. |
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20883 Time(s) |
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Brent Lockhart
Joined: 25 Jan 2012
Posts: 34
Location: Larkspur, Colorado
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| Posted: Jun 24, 2020 20:29 Post subject: Re: Popular Minerals |
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That's spectacular Jordi, thanks for the post.
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 25, 2020 17:06 Post subject: Re: Popular Minerals |
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| Thanks Brent. I like classics...
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Bob Carnein
Joined: 22 Aug 2013
Posts: 312
Location: Florissant, CO
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| Posted: Jun 25, 2020 17:56 Post subject: Re: Popular Minerals |
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Here's another erythrite from the Schneeberg district.
| Mineral: | Erythrite |
| Dimensions: | 2 cm |
| Description: |
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20680 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jun 26, 2020 17:06 Post subject: Popular Minerals - Cassiterite from Mount Xuebaoding |
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Cassiterite from Mount Xuebaoding, Pingwu, Sichuan Province, China
| Mineral: | Cassiterite on Muscovite |
| Locality: | | Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province, China | |
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| Dimensions: | Specimen size: 8.7 x 8.33.5 cm / main crystal size: 2 x 1.3 cm |
| Description: |
| Former collection of Miguel David Martínez |
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| Viewed: |
20581 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jul 03, 2020 14:07 Post subject: Popular Minerals - Chrysocolla coating Quartz from the Tentadora Mine |
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Chrysocolla coating Quartz from the Tentadora Mine, Peru
| Mineral: | Chrysocolla coating Quartz |
| Locality: | | Tentadora Mine, Ullpac Mountain, Huancano District, Pisco Province, Ica Department, Peru | |
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| Dimensions: | 3.3 × 2.8 × 3 cm |
| Description: |
| Group of Quartz crystals covered by botryoidal growths of Chrysocolla with an intense greenish blue color. From a well-known Peruvian locality but from which this type of specimen had not previously been found. |
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20408 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jul 04, 2020 18:20 Post subject: Popular Minerals - Elbaite from Pederneira claim |
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Elbaite with Mica from Pederneira claim
| Mineral: | Elbaite with Mica |
| Locality: | | Pederneira claim, São José da Safira, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil | |
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| Dimensions: | 3.5 × 2 × 2 cm |
| Description: |
| Crystal with very well defined faces and edges, clear and much richer in crystalline forms than usual. The crystal is polychrome, with two very marked color zones, red at the base and green at the terminal zone, and is partially covered with small Mica crystals |
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20192 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jul 07, 2020 13:51 Post subject: Popular Minerals - Laurentthomasite |
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Hexagonal floater crystal of Laurentthomasite with very marked polycrystalline growths, transparent and with an intense deep blue color. The species, a magnesium-potassium cyclosilicate, is a rarity recently (2019) approved by the IMA. From the type locality for the species.
| Mineral: | Laurentthomasite |
| Locality: | | Beravina, Ambaro, Tsaraitso, Betroka District, Anosy Region, Madagascar | |
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| Dimensions: | 2 × 1.8 × 0.5 cm |
| Description: |
Visible dichroism, blue in the center and green-yellowish on the side.
Photo: Joaquim Callén |
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| Viewed: |
19956 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jul 12, 2020 16:35 Post subject: Popular Minerals - Scheelite from Mount Xuebaoding, China |
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Multiple growth of dipyramidal crystals with sharp faces and edges, on matrix with leafy aggregates of Muscovite crystals. Large size of both the piece as a whole and the Scheelite crystals, which at the time were a relatively abundant species and which today have become difficult to obtain.
| Mineral: | Scheelite on Muscovite |
| Locality: | | Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province, China | |
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| Dimensions: | Specimen size: 13.2 × 11.6 × 8.6 cm / main crystal size: 7.2 × 6.6 cm |
| Description: |
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| Viewed: |
19756 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jul 15, 2020 13:34 Post subject: Popular Minerals - Fluorite from La Viesca Mine, Asturias, Spain |
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Two cubic Fluorite crystals beveled by the rhombododecahedron and with geometric color zoning.
| Mineral: | Fluorite |
| Locality: | | La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias), Spain | |
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| Dimensions: | Specimen size: 6 × 6 × 4.2 cm / main crystal size: 4 × 3.5 cm |
| Description: |
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| Viewed: |
19508 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jul 18, 2020 14:20 Post subject: Popular Minerals - Calcite from the Bigrigg Mine, England |
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Druse of complex Calcite crystals with dominant scalenohedron faces and with reddish inclusions of Hematite. An English classic, really old and with a complex pedigree, with two labels that detail much of its history. It came from the collection of Francis Butler, who in 1890 sold it to the British Museum in London, which gave it the collection number BM65723, after which it passed on to the Leif Engman collection.
| Mineral: | Calcite with Hematite inclusions |
| Locality: | | Bigrigg Mine, Bigrigg, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | Specimen size: 7.9 × 6.2 × 2.7 cm / main crystal size: 1.7 × 1 cm |
| Description: |
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| Viewed: |
19343 Time(s) |
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| Viewed: |
19325 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Jul 22, 2020 14:10 Post subject: Popular Minerals - Proustite from the Imiter Mine, Morocco |
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Proustite crystals with very well defined faces and edges and pyramidal terminations, transparents and with small white Quartz coatings.
| Mineral: | Proustite with minor Quartz |
| Locality: | | Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | Specimen size: 7.1 × 4.1 × 4.3 cm / main crystal size: 0.3 × 0.2 cm |
| Description: |
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| Viewed: |
19052 Time(s) |
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