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6323 results

Mineral

Aluminopyracmonite

aluminopyracmonite

Formula
(NH4)3Al(SO4)3
Microphotograph of aluminosugilite. The image is published in an article distributed under the Creative Commons Attribution 4.0 License: Nagashima, M., Fukuda, C., Matsumoto, T., Imaoka, T., Odicino, G., and Armellino, G.: Aluminosugilite, KNa2Al2Li3Si12O30, an Al analogue of sugilite, from the Cerchiara mine, Liguria, Italy, Eur. J. Mineral., 32, 57–66, https://doi.org/10.5194/ejm-32-57-2020, 2020. Mineral

Aluminosugilite

aluminosugilite
Agregados rosados de aluminotaipingita-(CeCa) sobre matriz. Localidad: Cave di Casette, Cave di Montoso, Bagnolo Piemonte, Cuneo, Piemonte, Italia. Montoso es una de las zonas donde se extrae la "Pietra di Luserna" o "Piedra de Luserna", un ortogneis leucogranítico caracterizado por una textura micro-"Augen" y un color gris verdoso o localmente azul pálido. Medidas: 5.5 x 2.1 x 1.5 cm. Ejemplar con análisis. Las fotos de minerales realizadas por Joan Rosell se encuentran bajo licencia Creative Commons Reconocimiento-CompartirIgual 4.0 Internacional License, tal y como se explica en: https://www.rosellminerals.com/avis_legal.php Mineral

Aluminotaipingite-(Ceca)

aluminotaipingite-(CeCa)

Formula
(Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4F3
Mineral

Alumoedtollite

alumoedtollite

Formula
K2NaCu5AlO2(AsO4)4
Alumohydrocalcite Field of view: 2 mm Locality: Graulai Quarry, Hillesheim, Eifel Region, Rhineland-Palatinate, Germany Mineral

Alumohydrocalcite

alumohydrocalcite

Formula
CaAl2(CO3)2(OH)4·3H2O
Mineral

Alumoklyuchevskite

alumoklyuchevskite

Formula
K3Cu²⁺3AlO2(SO4)4
Mohs
2.5
Mineral

Alumolukrahnite

alumolukrahnite
Grey inclusions of the extremely rare tantalum mineral alumotantite from the type locality in Russia: Vasin-Myl'k Mountain, Voron'i Tundry, Murmansk Oblast, Russian Federation. Alumotantite occurs as grey inclusions in the one-side polished specimen, mainly inside the circle but also in others parts of the specimen alumotantite can be found. Analyzed specimen by SEM/EDS. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Alumotantite

alumotantite

Formula
AlTaO4
Mineral

Alumovesuvianite

alumovesuvianite

Formula
Ca19Al(Al10Mg2)Si18O69(OH)9
:Ejemplar de buen tamaño de alumoåkermanita (IMA2008-049) procedente de las pegmatitas de la península de Kola. De color melado. Se acompaña probablemente de especies como cebollita y juanita que forman una veta blanquecina. Una especie muy poco común, muy visible en la sección pulida del mismo. Yacimiento: Turii alkaline Massif, Turii Cape, Murmansk Oblast, Rusia Medidas: 3.5 x 3.1 x 1.9 cm. Mineral

Alumoåkermanite

alumoåkermanite

Formula
(Ca,Na)2(Al,Mg,Fe²⁺)(Si2O7)
Mineraly.sk - alunit m Mineral

Alunite

alunite

Formula
KAl3(SO4)2(OH)6
Alunogen - Locality: Almyras, Agia Varvara, Cyprus - Specimen is from the J. L. Bruce collection of the California Institute of Technology, Padadena, California (No. 335). Label said Cyprus mine - Scale at bottom of image is one inch with a rule at one cm. Mineral

Alunogen

alunogen

Formula
Al2(SO4)3(H2O)12·5H2O
Outstanding sharp marine green alvanite crystals from the type locality (Kurumsak, Karatau Range, Southern Kazakhstan Province, Kazakhstan) in a contrasting matrix. It has a rare chemical composition since it is a ino-vanadate. Alvanite has only been found in three close deposits worldwide. Mineral

Alvanite

alvanite

Formula
ZnAl4(V(V)O3)2(OH)12·2H2O
Mineral

Alvesite

alvesite

Formula
NaKZrSi6O15·2H2O
Mineral

Alwilkinsite-(Y)

alwilkinsite-(Y)

Formula
Y(UO2)3(SO4)2O(OH)3(H2O)7·7H2O
Mineral

Amableite-(Ce)

amableite-(Ce)

Formula
Na15[(Ce1.5Na1.5)Mn3]Mn2Zr3◻Si[Si24O69(OH)3](OH)2·H2O
Yellowish brown crystal aggregates of the extremely rare Fe hydroxide mineral amakinite from a locality in Norway (Snarum, Modum, Viken, Norway). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Amakinite

amakinite

Formula
Fe(OH)2
Mineral

Amamoorite

amamoorite

Formula
CaMn²⁺2Mn³⁺(Si2O7)O(OH)
Amarantite, Hohmannite Locality: Queténa Mine, Toki Cu deposit, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile (Locality at mindat.org) Size: 3.9 x 3.9 x 2.3 cm. Two beautiful orange iron-containing minerals, both very rare, richly presented on one specimen! The piece shows sharp, flat-laying, acicular crystals of Amarantite in sprays to perhaps 5mm. In person, these crystals have a robust, electric orange-red flare to them and are quite eye-visible. Mixed in (close-up photo) are small tufts or ball-shaped clusters of microcrystalline Hohmannite. Associated minerals are Metahohmannite, Kornelite , Chalcanthite, Copiapite, and Picromerite, I am told. Mineral

Amarantite

amarantite

Formula
Fe³⁺2O(SO4)2·7H2O
Mohs
2.5
Mineral

Amarillite

amarillite

Formula
NaFe³⁺(SO4)2·6H2O
Mineral

Amaterasuite

amaterasuite

Formula
Sr4Ti6Si4O23(OH)Cl
"amblügoniit". More info about this file and about this specimen at geocollections.info Mineral

Amblygonite

amblygonite

Formula
LiAlPO4F
Ambrinoite is a very rare new mineral (IMA 2009-071) that is found only in this locality worldwide (Signols Quarry, Signols, Oulx, Val di Susa, Piedmont, Italy), so it's a one locality mineral. In addition, it is the first K- NH4 sulfosalt, which add interest to the species: Biagioni, C. et al. (2011): Ambrinoite, (K,NH4)2(As,Sb)8S13•H2O, a new mineral from Upper Susa Valley, Piedmont, Italy: the first natural (K,NH4)-hydrated sulfosalt. American Mineralogist, 96, 878-887. Mineral

Ambrinoite

ambrinoite

Formula
[K,(NH4)]2(As,Sb)6(Sb,As)2S13·H2O
Outstanding white and colorless crystals of the rare Na borate mineral ameghinite from the type (Tincalayu Mine, Salar Del Hombre Muerto, Los Andes, Salta, Argentina) and only known locality worldwide in Argentina. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Ameghinite

ameghinite

Formula
NaB3O3(OH)4