Canadian Mineralogist's Image Gallery

Cabriite: Pd2SnCu  
Sperrylite: PtAs2

Comments: Polished section (PPL) image of a ovoid grain of cabriite (Ca) rimmed by native silver (Ag) in a matrix of brownish cubanite (Cu), with tawny chalcopyrite (Cp). Surrounded on three sides by coarse, millimetric crystals of sperrylite (Sp).
Location: Noril’sk-Talnakh mining district of northwestern Russia. (CanMin, v40:473). Scale: Feld of view 1.2 mm.
© Canadian Mineralogist

Calvertite: Cu5Ge0.5S4

Comments: SEM images of massive-granular calvertite. The texture is made apparent by the presence of a thin rind of chalcocite (white) on the calvertite grains. (CanMin, v45:1519).
Location: Partly oxidized specimen from the Tsumeb mine, Tsumeb, Namibia. Scale: See Image.
© Canadian Mineralogist

Caryochroite: (Na,Sr)3(Fe+++,Mg)10[Ti2Si12O37](O,OH)9·8H2O

Comments: Hazel brown aggregate of caryochroite tubes. (CanMin, v44:1331).
Location: Umbozero mine, Alluaiv, Lovozero, Kola Peninsula, Russia. Scale: Specimen size 5 x 6 cm.
© Canadian Mineralogist

Catamarcaite: Cu6GeWS8  
Putzite: (Cu4.7Ag3.3)GeS6

Comments: Polished section of putzite (pu) grain in close association with unnamed Cu8Fe2ZnGe2S12 (un1) and catamarcaite (ca), as inclusions in chalcocite-sphalerite (cc/sp) (CanMin 42:1761).
Location: Old dumps near the Rosario vein, Capillitas mining district, Department of Andalgalá, Catamarca Province, Argentina.. Scale: See Image.
© Canadian Mineralogist

Catamarcaite: Cu6GeWS8

Comments: Fractured aggregate of catamarcaite (Ct) composed of twinned grains with red internal reflections; Dg is digenite, Sp sphalerite. Oil immersion, crossed polars. (CanMin, v44:1481).
Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina. Scale: See Image.
© Canadian Mineralogist

Catamarcaite: Cu6GeWS8  
Briartite: Cu2(Zn,Fe)GeS4  
Bornite: Cu5FeS4

Comments: Briartite-type phase (Bri) in close association with catamarcaite (Ct) lining a cavity in massive bornite (Bn) - chalcocite (Cc) ore; Sp is sphalerite (CanMin v44:1481).
Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina.. Scale: See Image.
© Canadian Mineralogist

Catamarcaite: Cu6GeWS8  
Luzonite: Cu3AsS4

Comments: Catamarcaite (Ct) in contact with luzonite (Luz), unnamed Cu8Fe2ZnGe2S12 (un), sphalerite (Sp) and fine-grained chalcocite - covellite (Cc/Cv). (CanMin v44:1481).
Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina. Scale: See Image.
© Canadian Mineralogist

Cerite-(La): (La,Ce,Ca)9(Mg,Fe+++)(SiO4)6[SiO3(OH)](OH)3

Comments: Orange aggregates of cerite-(La) in matrix, (CanMin, 40:1179).
Location: Mt. Yuksporr, Khibina massif, Kola Peninsula, Russia. Scale: Specimen size 3.5 cm.
© Canadian Mineralogist

Cerite-(La): (La,Ce,Ca)9(Mg,Fe+++)(SiO4)6[SiO3(OH)](OH)3

Comments: SEM photomicrograph of a rhombohedral crystal of cerite-(La).
Location: Mt. Yuksporr, Khibina massif, Kola Peninsula, Russia. Scale: Crystal size 2 mm.
© Canadian Mineralogist

Chlorbartonite: K6Fe24S26(Cl,S)

Comments: Black grains of chlorbartonite in sodalite-natrolite aggregates.
Location: Mount Koashva, Khibina massif, Kola Peninsula, Russia. Scale: Picture size 1 cm.
© Canadian Mineralogist

Chrisstanleyite: Ag2Pd3Se4  
Hakite: (Cu,Hg)3(Sb,As)(Se,S)3

Comments: Polished section showing chrisstanleyite (chr) is present as a single grain intergrown with clausthalite (cl) and eucairite (eu). cp (chalcopyrite), ha (hakite), di (selenian digenite), bo (bornite). (CanMin, v43:689).
Location: Low-temperature selenium-rich assemblage at Predborice, Czech Republic. Scale: See Image.
© Canadian Mineralogist

Chrisstanleyite: Ag2Pd3Se4  
Tischendorfite: Pd8Hg3Se9  
Tiemannite: HgSe

Comments: Polished section (PPL) showing tischendorfite (T, cream), clausthalite (Cl, off-white), tiemannite (Tie, gray), ankerite (black) and chrisstanleyite (C, greenish buff to pale brown).
Location: Eskaborner Stollen (Eskeborn Adit) at Tilkerode, Harz, Mountains, Germany. (CanMin v40:739). Scale: Picture Size 275 µm.
© Canadian Mineralogist

Chrombismite: Bi16CrO27

Comments: B&W image showing the relationship of grains of chrombismite to grains of chalcopyrite, pyrite and gold. (CanMin, v35:35).
Location: Quartz veins in the Jialu gold nine, Luonan County, Shaanxi Province, China. Scale: Feld of view: 0.12 mm.
© Canadian Mineralogist

Clausthalite: PbSe  
Schlemaite: (Cu,[ ])6(Pb,Bi)Se4  
Eucairite: CuAgSe

Comments: Reflected-light digital-image of the intermixed schlemaite grain in type sample F2, from which the reflectance, crystallographic and crystal-structure data were obtained. (CanMin, v 41, p 1435).
Location: "Tiber" dike, -855-m level, block 5128, main shaft # 371, Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany. Scale: See Picture.
© Canadian Mineralogist

Cooperite: (Pt,Pd,Ni)S  
Osmium: (Os,Ir)  
Vasilite: (Pd,Cu)16(S,Te)7  
Vysotskite: (Pd,Ni)S

Comments: BSE image taken with a SEM of the sulfide-dominant microparagenesis filling a gas vacuole. Cooperite crystal surrounded by Pd-Cu-Pt-S phase (vasilite?), vysotskite and osmium laths (white) in chalcopyrite-bornite matrix (dark). (CanMin 38:1258).
Location: Pustaya River placer deposit, situated within the Koryak-Kamchatka platinum-bearing belt of Alaskan-type intrusions in eastern Russia. Scale: See Image.
© Canadian Mineralogist

Coskrenite-(Ce): (Ce,Nd,La)2(SO4)2(C2O4)·8(H2O)

Comments: SEM image of coskrenite-(Ce) crystals in cavities in epsomite. (CanMin, v37:1453).
Location: AIum Cave Bluff, Great Smoky Mountains, Tennessee. Scale: See Image.
© Canadian Mineralogist

Cotunnite: PbCl2  
Burnsite: KCdCu7O2(SeO3)2Cl9

Comments: Images of burnsite grains (dark) in intimate intergrowth with cotunnite (light). Images obtained by scanning electron microscopy.
Location: North Breach of the great fissure Tolbachik volcano eruption (1975-1976), Kamchatka Peninsula, Russia. Scale: Scale bar: 20 µ-m.
© Canadian Mineralogist

Cuprobismutite: Cu10Bi12S23  
Kupcikite: Cu3.4Fe0.6Bi5S10

Comments: Backscattered electron image of kupcíkite (ku) replacing cuprobismutite (cu); both phases are in turn replaced by bsimuthinite derivative (bd79-92).
Location: Felbertal, Austria. Scale: Scale bar 100 µ-m.
© Canadian Mineralogist

Cupromakovickyite: Cu4AgPb2Bi9S18  
Hodrushite: Cu8Bi12S22

Comments: Kup?cíkite (ku) and hodrushite (ho) partly replaced by bismuthinite derivative (bd56) with relict lamellae of low-Cu (4P) and cupromakovickyite [4P(Cu,Pb)]. (CanMin, 41:1165).
Location: Scheelite deposit of Felbertal, Austria. Scale: Scale Bar 100 µm.
© Canadian Mineralogist

Cupromakovickyite: Cu4AgPb2Bi9S18  
Makovickyite: Ag1.5Bi5.5S9

Comments: SEM polished section detail of a grain of cupromakovickyite (dark gray) with locally exsolved lamellae (bright gray) of makovickyite. (CanMin, 46:503).
Location: Baita Bihor, Romania.. Scale: See Image.
© Canadian Mineralogist