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Mineralati

Minerals

6323 results

Mineral

Ardealite

ardealite

Formula
Ca2(PO3OH)(SO4)·4H2O
Ardennite-(As) Mineral

Ardennite-(As)

ardennite-(As)

Formula
Mn²⁺4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6
Yellow fibrous ardennite-(V) associated to red piemontite from the type locality in Italy: Rio dei Piani, Feilongo, Torino Province, Piedmont. Ex. Erich Laskowski collection. Mineral

Ardennite-(V)

ardennite-(V)

Formula
Mn²⁺4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6
Arfvedsonite (Size: 2 x 2 x 1 cm) Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada The xl is about 2 x 2 x 1 cm. Via Jean-Yves Lamoureux. MOB coll. It has not been analyzed but it's not from a marble xenolith so it's most likely plain arfvedsonite. Mineral

Arfvedsonite

arfvedsonite

Formula
NaNa2(Fe²⁺4Fe³⁺)Si8O22(OH)2
Colour
black
Mineral

Argandite

argandite

Formula
Mn7(VO4)2(OH)8
Extremely rare mineral argentobaumhauerite (formerly named as baumhauerite-2a). Analyzed specimen by SEM-EDS, analysis performed by Dr.Topa of the Natural History Museum Wien. From: Lengenbach Quarry, Binntal, Wallis, Switzerland. Mineral

Argentobaumhauerite

argentobaumhauerite

Formula
Ag1.5Pb22As33.5S72
Mohs
3
Mineral

Argentodufrénoysite

argentodufrénoysite
Argentojarosite from Bristol Silver Mines Inc., Bristol and Jackrabbit Districts, Lincoln Co., Nevada, USA Mineral

Argentojarosite

argentojarosite

Formula
AgFe³⁺3(SO4)2(OH)6
Mineral

Argentoliveingite

argentoliveingite

Formula
AgxPb40-2xAs48+xS112
Figure 1. Aggregate of argentopearceite-T2ac, partly composed of (pseudo)hexagonal tabular crystals in the cavity of quartz gangue; Mikulov (holotype P1P 35/2020); FOV 5 mm. Mineral

Argentopearceite

argentopearceite

Formula
Ag16As2S11
Bronze brown metallic crystals of the very rare Ag-Fe-Ni sulphide mineral argentopentlandite from a locality in Michigan (Silver City, Ontonagon County, Michigan, United States of America) in a partially polished specimen that was analyzed by the former owner of the specimen (the Vandenbroucke Museum, but the analysis is no longer available). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Argentopentlandite

argentopentlandite

Formula
Ag(Fe,Ni)8S8
Group of well-developed, pseudo-hexagonal tabular crystals of argentopolybasite from Kremnica. Associated minerals are quartz, dolomite and minor pyrargyrite. Field of view is 5 mm. Photo: P. Škácha. The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Mineral

Argentopolybasite

argentopolybasite

Formula
[Ag9AgS4][Ag6Sb2S7]
Argentopyrite (Picture width 2 mm) Locality: Schneeberg District, Erzgebirge, Saxony, Germany Mineral

Argentopyrite

argentopyrite

Formula
AgFe2S3
Reflected light (a) and backscattered electron (b) images of the holotype sample. In (b), argentotennantite-(Fe) corresponds to the red circles, whereas blue circles correspond to Ag-rich tennantite-(Fe). Light gray is argentotetrahedrite-(Zn) (Attr-Zn), whereas white is pyrargyrite (Pyg). The grain used from the single-crystal X-ray diffraction study was extracted from the red box. Mineral

Argentotennantite-(Fe)

argentotennantite-(Fe)

Formula
Ag6(Cu4Fe2)As4S12S
Mineral

Argentotennantite-(Zn)

argentotennantite-(Zn)

Formula
Ag6Cu4(Fe,Zn)2As4S13
Mineral

Argentotetrahedrite-(Cd)

argentotetrahedrite-(Cd)
Metallic inclusions of a mixture of the two very rare species kenoargentotetrahedrite-(Fe) & argentotetrahedrite-(Fe) in a completely analyzed specimen by SEM/EDS. From Oktyabrsky Mine, Talnakh, Noril'sk, Putoran Plateau, Taimyr Peninsula, Krasnoyarsk Krai, Russian Federation. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Argentotetrahedrite-(Fe)

argentotetrahedrite-(Fe)

Formula
Ag6Cu4(Fe,Zn)2Sb4S13
Mineral

Argentotetrahedrite-(Hg)

argentotetrahedrite-(Hg)
Reflected light (a) and backscattered electron (b) images of the holotype sample. In (b), argentotennantite-(Fe) corresponds to the red circles, whereas blue circles correspond to Ag-rich tennantite-(Fe). Light gray is argentotetrahedrite-(Zn) (Attr-Zn), whereas white is pyrargyrite (Pyg). The grain used from the single-crystal X-ray diffraction study was extracted from the red box. Mineral

Argentotetrahedrite-(Zn)

argentotetrahedrite-(Zn)
Mineral

Argesite

argesite

Formula
(NH4)7Bi3Cl16
Mineral

Argutite

argutite
Argyrodite Locality: Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Saxony, Germany (Locality at mindat.org) Size: 4.9 x 3.2 x 2.3 cm. Argyrodite is one of the rarest collectible silver species to obtain in a good display specimen. Argyrodite is an extremely rare GERMANIUM-containing silver sulfide and occurs at its best from this type locality (late 1800s) and from Bolivia as well (same era, into the early 1900s). Year of Discovery: 1886 at this, the type locality. This particular specimen is actually "beautiful" as far as they go, because it has some 3-dimensionality and can be displayed to show dramatically the clusters of 3-4mm Argyrodite crystals atop. They rest on a matrix of pyrite and silver ore. VERY fine display miniature! From the miniature rarities suite of Lawrence Conklin. Mineral

Argyrodite

argyrodite

Formula
Ag8GeS6
Arhbarite (Picture width: 4 mm) Locality: El Guanaco Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile Mineral

Arhbarite

arhbarite
Mineral

Ariegilatite

ariegilatite

Formula
BaCa12(SiO4)4(PO4)2F2O