View previous topic :: View next topic |
Author |
Message |
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Jul 25, 2020 18:00 Post subject: Popular Minerals - Sphalerite from Áliva, Cantabria, Spain |
|
|
Complex Sphalerite crystals with curved faces and edges. On matrix with white rhombohedral Dolomite crystals.
Mineral: | Sphalerite with Dolomite |
Locality: | Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria, Spain | |
|
Dimensions: | Specimen size: 5 × 3.6 × 3.6 cm / main crystal size: 1.7 × 1.4 cm |
Description: |
|
Viewed: |
15541 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Jul 28, 2020 16:47 Post subject: Popular Minerals - Gold from China |
|
|
Aggregate of elongated octahedral crystals with skeletal and hollow growths but with well defined crystalline forms.
Mineral: | Gold |
Locality: | Dongbeizhai Mine, Songpan, Ngawa Autonomous Prefecture, Sichuan Province, China | |
|
Dimensions: | Specimen size: 1.1 × 0.9 × 0.5 cm / main crystal size: 1 × 0.3 cm |
Description: |
|
Viewed: |
15397 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Jul 31, 2020 17:04 Post subject: Popular Minerals - Large Fluorite from La Viesca Mine, Asturias, Spain |
|
|
Group of crystals of cubic habit beveled by the rhombododecahedron, translucent and on matrix with small Quartz crystals.
Mineral: | Fluorite |
Locality: | La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias), Spain | |
|
Dimensions: | Specimen size: 13.4 cm × 9.8 cm × 6.5 cm / main crystal size: 4.3 cm × 4.1 cm |
Description: |
|
Viewed: |
15204 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 02, 2020 12:46 Post subject: Popular Minerals - Wurtzite with Galena from the Ánimas Mine, Bolivia |
|
|
Rosette growths of lamellar Wurtzite crystals with a very sharp hexagonal contour and unusually large in size for the species, on matrix and with cube-octahedral crystals of Galena. This well-known specimen, which comes from the Rock Currier collection (No. 6516), is considered the best of the find and among the most reputable.
Mineral: | Wurtzite with Galena |
Locality: | Ánimas Mine, Ánimas , Chocaya, Municipio Atocha, Sud Chichas Province, Potosí Department, Bolivia | |
|
Dimensions: | Specimen size: 9 × 8.3 × 5.2 cm / main crystal size: 2.6 × 1.7 cm |
Description: |
Former collection of Rock Currier (No. 6516) |
|
Viewed: |
15150 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 05, 2020 16:56 Post subject: Popular Minerals - Fluorapatite from Panasqueira, Portugal |
|
|
The upper levels of the great classic mine of Panasqueira are now producing very good specimens. We have gone from a period of scarcity to the current wealth, but in my opinion we are in a transitory period that may end when the mine goes to different areas. So far several pieces as this zoned crystal of Fluorapatite, isolated and well placed on its matrix of Quartz and Muscovite, have been recovered.
Mineral: | Fluorapatite with Muscovite and Quartz |
Locality: | Minas da Panasqueira, levels 0-1, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
|
Dimensions: | Specimen size: 10.7 × 5.6 × 4.5 cm / main crystal size: 3.7 × 3.6 cm |
Description: |
|
Viewed: |
15071 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 07, 2020 17:26 Post subject: Popular Minerals - Twinned Quartz (Japan law twin) from Colombia |
|
|
Very aerial group of Quartz crystals twinned by the Japan-law and doubly terminated. The crystals have inclusions and negative forms of Quartz inside.
Mineral: | Quartz (Japan law twin) |
Locality: | Municipio La Belleza, Vélez Province, Santander Department, Colombia | |
|
Dimensions: | 8.2 × 6 × 5 cm |
Description: |
|
Viewed: |
14941 Time(s) |
|
|
|
Back to top |
|
|
Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
|
Posted: Aug 10, 2020 08:11 Post subject: Re: Popular Minerals - Twinned Quartz (Japan law twin) from Colombia |
|
|
Jordi Fabre wrote: | Quartz (Japan law twin)
Municipio La Belleza, Vélez Province, Santander Department, Colombia
Dimensions: 8.2 × 6 × 5 cm
Photo: Joaquim Callén |
OUTSTANDING QUARTZ!!!
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 16, 2020 13:01 Post subject: Popular Minerals - Fluorite from the Emilio Mine, Asturias, Spain |
|
|
Group of almost colorless crystals of Fluorite, with the transparency that characterizes the finest specimens from the Emilio Mine. With scalenohedral white Calcite crystals and small Dolomite crystals.
Mineral: | Fluorite with Calcite and Dolomite |
Locality: | Emilio Mine, Obdulia vein, Caravia mining area, La Rubiera, Loroñe, Colunga, Comarca de la Sidra, Principality of Asturias (Asturias), Spain | |
|
Dimensions: | Specimen size: 9.6 × 7.4 × 4.7 cm / main crystal size: 1.6 × 1.5 cm |
Description: |
|
Viewed: |
14674 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 19, 2020 16:12 Post subject: Popular Minerals - Fluorite from the Yaogangxian Mine, Hunan, China |
|
|
Sharp Fluorite crystals with a uniform violet color, more intense on the edges. On a matrix of Quartz crystals partially covered with small white Dolomite crystals.
The specimen comes from the #Jan_Buma collection (number 040704)
Mineral: | Fluorite with Quartz and Dolomite |
Locality: | Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China | |
|
Dimensions: | Specimen size: 9.7 × 8.4 × 6.1 cm / main crystal size: 1.2 × 1.1 cm |
Description: |
|
Viewed: |
14600 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 22, 2020 17:24 Post subject: Popular Minerals - Vanadinite from the ACF Mine area, Morocco |
|
|
Crystals of Vanadinite on a white Baryte matrix, some with very marked hopper growths. A specimen that comes from the collection of Josep Amigó (Silvane)
Mineral: | Vanadinite with Gypsum and Baryte |
Locality: | ACF Mine area, Mibladen mining district, Mibladen, Midelt, Midelt Province, Drâa-Tafilalet Region, Morocco | |
|
Dimensions: | Specimen size: 6.3 × 5.2 × 3.1 cm. / main crystal size: 1.6 × 1.1 cm |
Description: |
Mined in 2001
Photo: Joaquim Callén |
|
Viewed: |
14474 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 26, 2020 15:51 Post subject: Popular Minerals - Quartz with Anatase and Chlorite inclusions from India |
|
|
A novelty at Tucson 2018. Group of Quartz crystals transparent, bright, have cavernous forms on some of their faces and one of them a scepter. They have Chlorite inclusions and small Anatase crystals on their surfaces.
Mineral: | Quartz with Anatase and Chlorite inclusions |
Locality: | Sainj Valley, Manihar Valley, Kullu District, Himachal Pradesh, India | |
|
Dimensions: | Specimen size: 20 × 11.3 × 8.3 cm / main crystal size: 15.5 × 6.8 cm |
Description: |
|
Viewed: |
14348 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Aug 29, 2020 13:38 Post subject: Popular Minerals - Hematite (iron roses) from Jinlong Hill, China |
|
|
Rosette-like growths of very flattened sharp lenticular Hematite crystals on a matrix of Quartz crystals. A modern classic.
Mineral: | Hematite variety iron rose with Quartz |
Locality: | Jinlong Hill, Longchuan, Heyuan Prefecture, Guangdong Province, China | |
|
Dimensions: | 18.1 × 10.2 × 7.3 cm |
Description: |
|
Viewed: |
14223 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Sep 05, 2020 16:36 Post subject: Popular Minerals - Vanadinite forming walls with twisting from Coud'a, Morocco |
|
|
From a find in 2019, found deeper than usual at the Coud'a area. Parallel polycrystalline aggregates forming twisting walls and feather-like growths of crystals with a tabular shape, a lot of them doubly terminated and some with hollow forms.
Mineral: | Vanadinite |
Locality: | Mohamedine, Coud'a, Mibladen mining district, Mibladen, Midelt, Midelt Province, Drâa-Tafilalet Region, Morocco | |
|
Dimensions: | Specimen size: 5.4 × 4.4 × 3.6 cm. / main crystal size: 2.5 × 1.9 cm. |
Description: |
|
Viewed: |
14005 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Sep 08, 2020 14:07 Post subject: Popular Minerals - Opal (variety hyalite) from Hungary |
|
|
Crown-shaped growth of very aerial botryoidal aggregates, clear and colorless and with white botryoidal Aragonite formations.
Mineral: | Opal (variety hyalite) with Aragonite |
Locality: | Tarcal, Eperjes-Tokaj Mountains, Borsod-Abaúj-Zemplén, Hungary | |
|
Dimensions: | Specimen size: 6.6 × 3.6 × 3.8 cm |
Description: |
|
Viewed: |
13803 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Sep 10, 2020 00:22 Post subject: Popular Minerals - Gypsum from Red River floodway, Canada |
|
|
Twinned crystals of Gypsum implanted in a spheroidal aggregate of lenticular crystals of the same Gypsum but with a black color, possibly due to organic inclusions.
The yellow crystals also have the peculiarity that they show not only fluorescence but also phosphorescence when exposed to ultraviolet light.
Mineral: | Gypsum |
Locality: | Red River floodway, Winnipeg, Winnipeg Capital Region, Manitoba, Canada | |
|
Dimensions: | Specimen size: 10.7 × 8 × 6.4 cm / main crystal size: 4.6 × 3.5 cm |
Description: |
|
Viewed: |
13720 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Sep 12, 2020 16:47 Post subject: Popular Minerals - Olivenite from Cornwall, UK |
|
|
Groups of dipyramidal Olivenite crystals on Quartz matrix, with defined faces and edges and polycrystalline growths. An English classic.
Mineral: | Olivenite and Quartz |
Locality: | Cornwall, England / United Kingdom | |
|
Description: |
Specimen size: 5.3 × 3.4 × 2.4 cm / main crystal size: 0.4 × 0.3 cm |
|
Viewed: |
13524 Time(s) |
|
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Sep 13, 2020 15:59 Post subject: Popular Minerals - Silver from Hongda Mine, China |
|
|
Very aerial specimen with growths of crystals of Silver with hooked terminations and lateral twists.
On matrix with deformed pseudo-octahedral crystals of Acanthite.
Mineral: | Silver |
Locality: | Hongda Mine, Xiaoqinggou, Lingqiu, Datong Prefecture, Shanxi Province, China | |
|
Dimensions: | Specimen size: 7.3 × 5.2 × 2.7 cm / main crystal size: 3.6 × 0.2 cm |
Description: |
|
Viewed: |
13413 Time(s) |
|
|
|
Back to top |
|
|
Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
|
Posted: Sep 14, 2020 04:22 Post subject: Re: Popular Minerals |
|
|
I don't collect silver specimens and I must confess I'm not that into wire silvers, but that one is stunning and can compete with Freiberg/Germany and Kongsberg/Norway, the two Holy Grails of natural silver specimens!
And I love that yellow selenite from Canada posted some days ago, great specimen!
|
|
Back to top |
|
|
Volkmar Stingl
Joined: 23 Sep 2012
Posts: 865
Location: Innsbruck
|
Posted: Sep 14, 2020 06:07 Post subject: Re: Popular Minerals |
|
|
Really a great silver specimen from Hongda Mine, and a perfect photo!
|
|
Back to top |
|
|
Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
|
Posted: Sep 16, 2020 12:05 Post subject: Popular Minerals - Galena with Pyrite from Weardale, England, UK |
|
|
Cubo-octahedral Galena crystal showing an equal development of the cube and the octahedron faces. One of the cube faces is coated by yellow Pyrite.
Mineral: | Galena with Pyrite |
Locality: | Weardale, North Pennines Orefield, County Durham, England / United Kingdom | |
|
Dimensions: | Specimen size: 5.2 × 4 × 3.8 cm / main crystal size: 4.4 × 3.2 cm |
Description: |
|
Viewed: |
13225 Time(s) |
|
|
|
Back to top |
|
|
|