Canadian Mineralogist's Image Gallery

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: 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

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.
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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.
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Mascagnite: (NH4)2SO4  
Lecontite: (NH4,K)Na(SO4)·2(H2O)

Comments: SEM BSE image of fine-grained lecontite (Le) and thenardite, occupying the space between mascagnite (M) crystals. CanMin 47:573.
Location: Coal-waste heap in Avion, northern France, that has been undergoing subsurface combustion for several decades. Scale: See Image.
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Matildite: AgBiS2  
Bismuth: Bi  
Bismuthinite: Bi2S3

Comments: SEM image of native Bi replaced by bismuthinite and matildite. Black areas represent gangue minerals. (CanMin, v43:899).
Location: Uranium deposit at Niederschlema-Alberoda, Germany. Scale: See Image.
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Mazzettiite: Ag3HgPbSbTe5

Comments: Back-scattered electron photograph (SEM) of mazzettiite (M), associated with altaite (A), galena (G) and quartz (Q).
Location: Museum specimen in the Mineralogical Collection of the Institut royal des Sciences naturelles de Belgique, Bruxelles (Belgium). Findlay Gulch, Saguache Co., Colorado, USA. Scale: See Image.
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Melilite: (Ca,Na)2(Al,Mg,Fe++)(Si,Al)2O7  
Monticellite: CaMgSiO4

Comments: Thin-section image of monticellite interstitial between unaltered melilite crystals (CanMin v. 41. p 1259).
Location: Skarns along the contact of a diorite intrusion at Oravit¸a, Banat, in Romania. Scale: Field of View 2.7 mm.
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Menshikovite: Pd3Ni2As3  
Paolovite: Pd2Sn

Comments: BSE image showing menshikovite (mnv), paolovite (plv), isomertieite (ism), cobaltite (cob), and chalcopyrite (ccp) with quartz (qtz) and a Fe-rich aluminosilicate (sil).
Location: Lower (exo)-contact of the Chiney intrusion in Siberia. (CanMin, v40:679). Scale: See Image.
© Canadian Mineralogist

Merenskyite: (Pd,Pt)(Te,Bi)2  
Borovskite: Pd3SbTe4  
Temagamite: Pd3HgTe3

Comments: Borovskite (Bvk) - temagamite (Tmg) - merenskyite (Mrk) composite grain included in chalcopyrite (Ccp). (CanMin, v 42, p 674).
Location: McBratney high-grade PGE-Au occurrence, Bear Lake mafic unit, Proterozoic Flin Flon greenstone belt, Manitoba, Canada. Scale: See Image.
© Canadian Mineralogist

Mertieite-II: Pd8(Sb,As)3

Comments: Oil immersion hotomicrograph of inclusions of mertieite-II in matrix of Pt-Fe alloy (CanMin, v 42, p 614).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
© Canadian Mineralogist

Miessiite: Pd11Te2Se2

Comments: B&W optical image of miessiite grain. (CanMin, v45:1221).
Location: Miessi River placers, Lemmenjoki area, Inari commune, Lapland, Finland.. Scale: See Image.
© Canadian Mineralogist

Milotaite: PdSbSe

Comments: Polished section image of milotaite (mi) which occurs as subhedral, minute inclusions in eucairite (eu)-tiemannite(ti). bo (bornite), di (selenian digenite), (CanMin, v43:689).
Location: Predborice, Czech Republic. Scale: See Image.
© Canadian Mineralogist

Monazite-(Sm): SmPO4

Comments: Back-scattered electron image of the main aggregate of monazite-(Sm) and manganocolumbite (C) embedded in quartz (black). Variations in brightness of the monazite-(Sm) are controlled by the Th content, whereas the ratio Nb/Ta affects manganotantalite.
Location: Annie Claim #3 pod, Greer Lake intrusion, Archean Bird River Subprovince of the Superior Province, Southeastern Manitoba, Canada. Scale: Grain size 0.8 mm.
© Canadian Mineralogist

Moncheite: (Pt,Pd)(Te,Bi)2  
Insizwaite: Pt(Bi,Sb)2

Comments: Back-scattered electron image showing b) intergrowth of taimyrite-tatyanaite with moncheitei-insizwaite (CanMin, v 42, p 611).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
© Canadian Mineralogist

Montetrisaite: Cu6(SO4)(OH)10·H2O

Comments: SEM image of montetrisaite showing the splintery fracture. {010} face is shown. (CanMin, v47:143).
Location: Monte Trisa, Torrebelvicino, Vicenza, Italy. Scale: See Image.
© Canadian Mineralogist

Monticellite: CaMgSiO4  
Melilite: (Ca,Na)2(Al,Mg,Fe++)(Si,Al)2O7

Comments: Thin-section image of monticellite interstitial between unaltered melilite crystals (CanMin v. 41. p 1259).
Location: Skarns along the contact of a diorite intrusion at Oravit¸a, Banat, in Romania. Scale: Field of View 2.7 mm.
© Canadian Mineralogist

Mozgovaite: PbBi4(S,Se)7

Comments: B&W image of a polished section.The black matrix is epoxy. The black spots on the crystal are the trace of microhardness indenter.
Location: Fumarole in La Fossa crater on Vulcano, Aeolian Islands, Italy. (CanMin v37:1499). Scale: Crystal Length 165 µm.
© Canadian Mineralogist

Nickelaustinite: Ca(Ni,Zn)(AsO4)(OH)

Comments: Stellate aggregate of acicular nickelaustinite crystals associated with rhombohedral dolomite crystals. (CanMin, v25:401).
Location: Bou Azzer, Anti-Atlas Mountains, Morocco. Scale: Scale Bar 100 µm.
© Canadian Mineralogist