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Minerals

6323 results

Mineral

Manganilvaite

manganilvaite

Formula
CaFe²⁺Fe³⁺Mn²⁺(Si2O7)O(OH)
Manganite - Locality: Ilfeld, Harz, Germany - Exposed in the Mineralogical Museum, Bonn, Germany Mineral

Manganite

manganite

Formula
Mn³⁺O(OH)
Mohs
4
Mineral

Manganlotharmeyerite

manganlotharmeyerite

Formula
CaMn³⁺2(AsO4)2(OH)2
Mohs
3
Mineral

Mangano-Ferri-Eckermannite

mangano-ferri-eckermannite

Formula
NaNa2(Mn²⁺4Fe³⁺)Si8O22(OH)2
Mohs
5
Mangano-mangani-ungarettiite, Amphibole Supergroup Field of view: 0.5 mm Locality: Am Rothenberg Quarry, Bell, Eifel, Rhineland-Palatinate, Germany Mineral

Mangano-Mangani-Ungarettiite

mangano-mangani-ungarettiite

Formula
NaNa2(Mn²⁺2Mn³⁺3)(Si8O22)O2
Mineral

Manganoarrojadite-(Kna)

manganoarrojadite-(KNa)
Aggregates of manganobadalovite: (a) clusters of prismatic red crystals up to 0.5 mm in size with white metathénardite on dark steel-grey hematite. Photograph: Maria D. Milshina. Mineral

Manganobadalovite

manganobadalovite

Formula
NaNaMn(MgFe³⁺)(AsO4)3
Yellow ottohahnite microcrystals associated to a mixture of manganoblödite & cobaltoblödite (confirmed by SEM-EDS) and also associated to bluelizardite and plasilite after the label. From Blue Lizard Mine, Red Canyon, San Juan County, Utah, United States of America. Ex. Erich Laskowski collection (USA). Mineral

Manganoblödite

manganoblödite

Formula
Na2Mn(SO4)2·4H2O
Manganochromite, Pyrrhotite Locality: Sätra Mine, Doverstorp ore field, Finspång, Östergötland, Sweden Dimensions: 25 mm x 25 mm x 30 mm According to the label (Excalibur): "submicroscopic intergrowths in pyrrhotite" Collection and photo Erik Vercammen Mineral

Manganochromite

manganochromite

Formula
Mn²⁺Cr2O4
Pink crystals and aggregates of the rare new mineral manganoeudialyte (IMA 2009-039) from the type locality (Pedra Balao, Pocos de Caldas, Minas Gerais, Brazil) and one of the only five known localities worldwide. Mineral

Manganoeudialyte

manganoeudialyte

Formula
Na14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Mineral

Manganohatertite

manganohatertite

Formula
NaNaCa(MnFe³⁺)(AsO4)3
Tan bladed manganohörnesite with white acicular hörnesite crystals. Collection & Photograph Christian Rewitzer 10.2020. From: Mina Casualidad, Baños de Alhamilla, Pechina, Almería, Andalusia, Spain. Mineral

Manganohörnesite

manganohörnesite

Formula
Mn²⁺3(AsO4)2·8H2O
Mineral

Manganokaskasite

manganokaskasite

Formula
(Mo,Nb)S2·(Mn1-ₓAlₓ)(OH)2+ₓ
FOV 2.8 x 2.4 mm. Found August 1997 (Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada). MOB coll. This somewhat crude xl is on a specimen analyzed at CMN. This find (in igneous breccia) produced ferrokentbrooksite (http://www.mindat.org/photo-166795.html ), manganokhomyakovite and khomyakovite (http://www.mindat.org/photo-166793.html ). (According to Pavel Kartashov, there may be other, undescribed, eudialyte group members as well.) But the xls are generally zoned. The analysis for this specimen showed a core of ferrokentbrooksite with a shell of manganokhomyakovite. However this particular xl may have a different structure. It is impossible to distinguish eudialyte group members visually at MSH. For this particular occurence I estimate that ferrokentbrooksite >> manganokhomyakovite > khomyakovite. But this is based on just 7-8 analyses that I know of Mineral

Manganokhomyakovite

manganokhomyakovite

Formula
Na12Sr3Ca6Mn3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2
Mineral

Manganokukisvumite

manganokukisvumite

Formula
Na6MnTi4(Si8O24)O4 * 4H2O
Outstanding rose red specimen of the extremely rare K-Mn sulphate mineral manganolangbeinite from the type and only known locality worldwide in Mount Vesuvius (Campania, Italy). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Manganolangbeinite

manganolangbeinite

Formula
K2Mn²⁺2(SO4)3
Mineral

Manganonaujakasite

manganonaujakasite

Formula
Na6(Mn²⁺,Fe²⁺)Al4Si8O26
Manganoneptunite Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada (Locality at mindat.org) A remarkable thumbnail! It is a 2.5 cm tall specimen with a wonderful, deep red 1.3 cm neptunite crystal showing exceptional form. Ex Marcelle and Charles Weber Collection. 2.6 x 2.0 x 1.7 cm Mineral

Manganoneptunite

manganoneptunite

Formula
Na2KLiMn²⁺2Ti2Si8O24
Mineral

Manganonewberyite

manganonewberyite

Formula
Mn(PO3OH)(H2O)3
:Locality: Pegmatite No. 60, Lovozero Massif, Kola, Russian Federation Size: 1.4 × 1 × 0.7 cm Description: Manganonordite-(Ce) is a extremelly rare cerium, sodium and strontium silicate from the pegmatite 60 in Kromka stream, located in the northeastern part of the Karnasurt Mts. This pegmatite was discovered in 1955 by E.I. Semenov and it is the co-Type Locality for the species. Manganonordite-(Ce) shows a brownish radiated growths. Usually with rhabdophane-(Ce) and manganese oxides. Mineral

Manganonordite-(Ce)

manganonordite-(Ce)

Formula
Na3SrCeMn²⁺Si6O17
Mineral

Manganoquadratite

manganoquadratite

Formula
AgMnAsS3
The type specimen of manganoschafarzikite showing a tarnished dark-red-brown to black lamellar aggregate of manganoschafarzikite surrounding yellow nadorite. At the bottom-right corner, greyish to white crystals of rhodochrosite appear. Image width 6 mm. GEO-NRM 19339699. Photo: Torbjörn Lorin. Mineral

Manganoschafarzikite

manganoschafarzikite

Formula
MnSb2O4
Pale brown crystals and crystal aggregates of the very rare mineral manganosegelerite from the type and only known locality worldwide: Vasin-Myl'k Mountain, Kola, Russian Federation. Mineral

Manganosegelerite

manganosegelerite

Formula
(Mn²⁺,Ca)(Mn²⁺,Fe²⁺,Mg)Fe³⁺(PO4)2(OH)·4H2O
Zincite, Manganosite, Sonolite Locality: Trotter Mine (Lehigh Mine), Franklin, Franklin Mining District, Sussex County, New Jersey, USA (Locality at mindat.org) An interesting combination specimen with very rich, lustrous, curving sheets of Foliated Zincite (red), in a matrix of massive sonolite (pink - to the left side and bottom). Floating in the sonolite mass are sharp pseudocubic black crystals of the rare species Manganosite 10 x 6 x 4.5 cm Mineral

Manganosite

manganosite

Formula
Mn²⁺O