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Mineralati

Minerals

6323 results

Outstanding yellow crystals of the extremely rare uranium mineral agrinierite from the type and only known locality worldwide: Margnac Mine, Compreignac, Haute-Vienne, Limousin, France. Mineral

Agrinierite

agrinierite

Formula
K2Ca[(UO2)3O3(OH)2]2·5H2O
Aguilarite - Locality: San Carlos Mine, La Luz, Mun. de Guanajuato, Guanajuato, Mexico - specimen height is 3.9 cm Mineral

Aguilarite

aguilarite

Formula
Ag4SeS
Mohs
2.5
Mineral

Agujaite

agujaite

Formula
Na6Al6(H2O)15(OH)3(AsO4)5(AsO3OH)3⋅3H2O
Aheylite, Cassiterite Locality: Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia (Locality at mindat.org) Size: 3.5 x 2.3 x 0.8 cm. Pastel blue, translucent, spheres to .2 cm across of the very rare phosphate, aheylite, are perched on very lustrous crystals of cassiterite, to .6 cm across, along with colorless, quartz crystals. Aheylite, a hydrated, iron, aluminum, phosphate. Ex. Brian Kosnar. Mineral

Aheylite

aheylite

Formula
Fe²⁺Al6(PO4)4(OH)8·4H2O
Alfredopetrovite, Ahlfeldite, Chalcomenite Locality: El Dragón Mine, Quijarro Province, Potosi Department, Bolivia Size: 1.3 cm × 0.7 cm × 0.8 cm Description: Druse of tiny alfredopetrovite crystals, colorless to greyish tone, coating over blue chalcomenite and pink ahlfeldite. Some areas, with no colored background minerals, let us to see perfectly crystals. You can also observe face reflections of this extremely rare species. Alfredopetrovite is the first aluminium selenite mineral. On a kruťait-penroseite matrix. Mineral

Ahlfeldite

ahlfeldite

Formula
NiSeO3·2H2O
Mineral

Ahrensite

ahrensite

Formula
γ-Fe2(SiO4)
Mohs
6
Aikinite - Locality: Beresowsk, Ural - Exposed in the Mineralogical Museum, Bonn, Germany Mineral

Aikinite

aikinite

Formula
CuPbBiS3
White crystals of the very rare mineral aiolosite from the type and only known locality worldwide for the species: La Fossa Crater, Vulcano Island, Aeolian Islands, Sicily, Italy Mineral

Aiolosite

aiolosite

Formula
Na2(Na2Bi)(SO4)3Cl
Mineral

Airdite

airdite
Ajoite Field of view: 2 mm Locality: New Cornelia Mine, Pima County, Arizona, USA Mineral

Ajoite

ajoite

Formula
K3Cu²⁺20Al3Si29O76(OH)16·8H2O
Akaganeite Field of view: 0,3 mm high Locality: Genna zinc smelter, Letmathe, North Rhine-Westphalia Mineral

Akaganeite

akaganeite

Formula
(Fe³⁺,Ni²⁺)8(OH,O)16Cl1.25·nH2O
Mineral

Akaogiite

akaogiite

Formula
TiO2
Mineral

Akasakaite-(Ce)

akasakaite-(Ce)

Formula
(CaCe)(AlAlMn²⁺)O[Si2O7][SiO4](OH)
Mineral

Akasakaite-(La)

akasakaite-(La)

Formula
(CaLa)(AlAlMn²⁺)O[Si2O7][SiO4](OH)
Detail of akatoreite mineral in rhodonite matrix. Mineral

Akatoreite

akatoreite

Formula
Mn²⁺9Al2Si8O24(OH)8
Mohs
6
White vitreous crystal aggregates of the extremely rare Al mineral akdalaite from the TL (Solnechnoye Mine, Kara-Oba, Karazhal, Ulytau Region, Kazakhstan) and only one of 6 known localities worldwide. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Akdalaite

akdalaite

Formula
Al5O7(OH)
Long prismatic semimetallic crystals of the very rare Mn mineral akhtenskite from the type locality in Akhtenskoe Fe deposit, Russia (Akhtenskoe, Magnitka, Kusinskii Raion, Chelyabinsk Oblast, Russian Federation) and only one of the very few known localities worldwide. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Akhtenskite

akhtenskite

Formula
MnO2
Mohs
2
Mineral

Akimotoite

akimotoite

Formula
MgSiO3
Mineral

Aklimaite

aklimaite

Formula
Ca4[Si2O5(OH)2](OH)4·5H2O
Mineral

Akopovaite

akopovaite

Formula
Al4Li2(OH)12(CO3)(H2O)3
Eveite, Akrochordite Locality: Långban, Filipstad, Värmland, Sweden Dimensions: 1.5 cm x 1.0 cm x 1.0 cm Extremely rare, co-type material from the type locality at Langban. Bright green, vitreous, <0.5mm cluster of eveite hosted within a small vug. Accompanied by other eveite fragments and brown, subhedral akrochordite in a contrasting, pink, granular carbonate matrix. Includes old detailed A. F. Eadie and Topaz-Mineral Exploration labels. Ex. Rock Currier collection. Tom and Melissa Campbell photos. Mineral

Akrochordite

akrochordite

Formula
Mn²⁺5(AsO4)2(OH)4·4H2O
Mohs
3.5
Pale grey crystals of the extremely rare Mg borate mineral aksaite from the TL (Chelkar Salt Dome, Aksai Valley, Shalkar, Aktobe Province, Kazakhstan) and only known locality worsdide in Aksai Valley. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Aksaite

aksaite

Formula
MgB6O7(OH)6·2H2O
Aktashite Dimensions: 2.2 cm x 2.2 cm x 0.9 cm Locality: Moctezuma, Mun. de Moctezuma, Sonora, Mexico Aktashite is a very rare, gray, Cu-Hg-As sulfosalt of hydrothermal origin found in complex polymetallic As/Hg-bearing deposits. Gray aktashite is richly dispersed on matrix along with other rare species from this very unusual and obscure Mexican locale. There is probably mint-green, fibrous emmonsite plus an unknown green mineral. Ex. American Museum Collection. Mineral

Aktashite

aktashite

Formula
Cu6Hg3As4S12
Alabandite - Locality: Uchucchacua Mine, Oyon Province, Lima Department, Peru - A cluster of alabandite crystals, the largest of which is about 2.5 cm. The specimen is 7.5 x 3.8 cm. The small crystals growing on the larger ones are also alabandite. There are some small crystals of proustite and another unknown minerals also on the specimen but not readily apparent on the photo. The specimen is in the collection of Bill Pinch, of Tucson Arizona. The specimen was purchased in Lima Peru by Jaroslav Hyrsl from an old collection. It was by far the best specimen of the species in the collection. It is not known how many specimens of alabandite that Uchucchacua has produced but if it has produced many alabandite specimens, few of them have survived. The miners know to look for and save rhodochrosite and silver speckmens from the mine, but black minerals like alabandite are most likely to just be run through the crushers or thrown out on the dump. Mineral

Alabandite

alabandite

Formula
MnS