Canadian Mineralogist's Image Gallery

Magnesiopascoite: Ca2Mg[V10O28]·16H2O

Comments: Intergrowth of orange magnesiopascoite crystals on V-U oxide replacement of organic material. CanMin v46:.
Location: Blue Cap mine, near La Sal, San Juan County, Utah, U.S.A.. Scale: Crystal size 2.2mm across.
© Canadian Mineralogist

Magnesiopascoite: Ca2Mg[V10O28]·16H2O

Comments: Intergrowth of orange magnesiopascoite crystals on V-U oxide replacement of organic material. CanMin v46:.
Location: Blue Cap mine, near La Sal, San Juan County, Utah, U.S.A.. Scale: Crystal size 2.2mm across.
© Canadian Mineralogist

Magnesiosadanagaite: NaCa2[Mg3(Al,Fe+++)2]Si5AlO22(OH)2

Comments: Magnesiosadanagaite mantled by phlogopite (brown) adjacent to corundum (variety ruby) in white marble. (CanMin, v46:151).
Location: Dattaw mine, Mogok Stone Tract, Mandalay Division, Myanmar. Scale: Picture size 4 cm.
© Canadian Mineralogist

Magnesiosadanagaite: NaCa2[Mg3(Al,Fe+++)2]Si5AlO22(OH)2

Comments: Magnesiosadanagaite mantled by phlogopite (brown) adjacent to corundum (variety ruby) in white marble. (CanMin, v46:151).
Location: Dattaw mine, Mogok Stone Tract, Mandalay Division, Myanmar. Scale: Picture size 4 cm.
© Canadian Mineralogist

Magnesiotaaffeite-6N3S: (Mg,Fe++,Zn)2Al6BeO12  
Magnesiotaaffeite-2N2S: Mg3Al8BeO16  
Taaffeite:

Comments: BSE image of magnesiotaaffeite-6N3S (Mgt-6N3S) with a central lamella of magnesiotaaffeite-2N2S (Mgt-2N2S). Other minerals Spl: spinel; Chl: clinochlore.
Location: Polymetamorphic dolomite marble at Eastern Alps, Stubenberg, Styria, Austria. (CanMin, v46:1195). Scale: See Image.
© Canadian Mineralogist

Magnesiotaaffeite-6N3S: (Mg,Fe++,Zn)2Al6BeO12  
Magnesiotaaffeite-2N2S: Mg3Al8BeO16  
Taaffeite:

Comments: BSE image of magnesiotaaffeite-6N3S (Mgt-6N3S) with a central lamella of magnesiotaaffeite-2N2S (Mgt-2N2S). Other minerals Spl: spinel; Chl: clinochlore.
Location: Polymetamorphic dolomite marble at Eastern Alps, Stubenberg, Styria, Austria. (CanMin, v46:1195). Scale: See Image.
© Canadian Mineralogist

Maleevite: BaB2Si2O8

Comments: Backscatter elecron images of (a) an intergrowth of maleevite (Mal) and quartz (Qtz) and unknown Y-silicate (Y-Si); (b) maleevite (Mal) in arfvedsonite and astrophyllite (Astr) (CanMin, v 42, p 109).
Location: Moraine of the Dara-i-Pioz glacier, Alai range, Tien Shan, northern Tajikistan. Scale: See Image.
© Canadian Mineralogist

Maleevite: BaB2Si2O8

Comments: Backscatter elecron images of (a) an intergrowth of maleevite (Mal) and quartz (Qtz) and unknown Y-silicate (Y-Si); (b) maleevite (Mal) in arfvedsonite and astrophyllite (Astr) (CanMin, v 42, p 109).
Location: Moraine of the Dara-i-Pioz glacier, Alai range, Tien Shan, northern Tajikistan. Scale: See Image.
© Canadian Mineralogist

Manganlotharmeyerite: Ca(Mn+++,Mg,)2(AsO4)2(OH,H2O)2

Comments: Scanning electron micrograph of subparallel crystals of manganlotharmeyerite.
Location: Massive braunite ores at the Starlera Mn deposit in the Eastern Alps of Switzerland. Scale: See Picture.
© Canadian Mineralogist

Manganlotharmeyerite: Ca(Mn+++,Mg,)2(AsO4)2(OH,H2O)2

Comments: Scanning electron micrograph of subparallel crystals of manganlotharmeyerite.
Location: Massive braunite ores at the Starlera Mn deposit in the Eastern Alps of Switzerland. Scale: See Picture.
© Canadian Mineralogist

Manganokukisvumite: Na6MnTi4Si8O28·4(H2O)

Comments: Scanning electron photomicrograph of manganokukisvumite. (CanMin, v 42 , p 782).
Location: Mont Saint-Hilaire, Quebec. Scale: See Image.
© Canadian Mineralogist

Manganokukisvumite: Na6MnTi4Si8O28·4(H2O)

Comments: Scanning electron photomicrograph of manganokukisvumite. (CanMin, v 42 , p 782).
Location: Mont Saint-Hilaire, Quebec. Scale: See Image.
© Canadian Mineralogist

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Comments: SEM images showing the morphology of marianoite crystals, (CanMin, v46:1023).
Location: Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. Scale: See Images.
© Canadian Mineralogist

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Comments: PPL image of euhedral crystals of marianoite, titanite and U-rich pyrochlore in the phlogopite-calcite silicocarbonatite. (CanMin, v46:1023).
Location: Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. Scale: See Image.
© Canadian Mineralogist

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Comments: SEM images showing the morphology of marianoite crystals, (CanMin, v46:1023).
Location: Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. Scale: See Images.
© Canadian Mineralogist

Marianoite: Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4

Comments: PPL image of euhedral crystals of marianoite, titanite and U-rich pyrochlore in the phlogopite-calcite silicocarbonatite. (CanMin, v46:1023).
Location: Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. Scale: See Image.
© Canadian Mineralogist

Martinite: (Na,[ ],Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4(H2O)

Comments: Colorless, pseudohexagonal plate of martinite associated with sodalite and a clinoamphibole. (CanMin, v45:1281).
Location: Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada. Scale: Crystal size 40 µm.
© Canadian Mineralogist

Martinite: (Na,[ ],Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4(H2O)

Comments: Colorless, pseudohexagonal plate of martinite associated with sodalite and a clinoamphibole. (CanMin, v45:1281).
Location: Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada. Scale: Crystal size 40 µm.
© Canadian Mineralogist

Martyite: Zn3V2O7(OH)2·2H2O

Comments: Clusters of yellow flakes and coarser red-orange plates of martyite on V-U replacement of organic material.
Location: Blue Cap mine, near La Sal, San Juan County, Utah, USA. Scale: Picture size 1.4 mm.
© Canadian Mineralogist

Martyite: Zn3V2O7(OH)2·2H2O

Comments: Clusters of yellow flakes and coarser red-orange plates of martyite on V-U replacement of organic material.
Location: Blue Cap mine, near La Sal, San Juan County, Utah, USA. Scale: Picture size 1.4 mm.
© Canadian Mineralogist