Canadian Mineralogist's Image Gallery

Anduoite: (Ru,Os)As2

Comments: Backscattered electron Image of euhedral anduoite crystal enclosed in chromian spinel containing lamellae of ilmenite. Image on left is large view, image on right is detailed view. (CanMin, v 39, p 596).
Location: Chromitite ore, Kapitanov deposit, Ukrainian Shield, Ukraine. Scale: See Image.
© Canadian Mineralogist

Ansermetite: MnV2O6·4(H2O)

Comments: Environmental scanning electron microscope image of the ansermetite crystals. (CanMin, v 41, p 1425).
Location: Fianel, Val Ferrera, Eastern Swiss Alps. Scale: Scale bar 20 µ-m.
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Atheneite: (Pd,Hg)3As

Comments: BSE image of Hg-bearing palladian gold (Au-Pd-Hg), Pd-poor gold and associated PGM in a Mn-Ba-O matrix (possibly romanechite, dark grey). Note that the crystals of atheneite [(Pd,Hg)3As] are on the surface of the Au-Pd-Hg alloy.
Location: Drill-core, recovered in 1982 from the near-surface lateritic portion of the Serra Pelada garimpo (1980-1984) bonanza, Carajas mineral province, Northern Brazil. (CanMin, v40:1451). Scale: See Image.
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Atokite: (Pd,Pt)3Sn  
Taimyrite: (Pd,Cu,Pt)3Sn

Comments: Photomicrograph (oil immersion) of atokite and taimyrite intergrowth inside tetraauricupride reaction rim on Pt-Fe alloy. Outlined section shows atokite relics within taimyrite. (CanMin, v 42, p 610).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia,. Scale: See Image.
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Atokite: (Pd,Pt)3Sn  
Sobolevskite: PdBi

Comments: Back-scattered electron image showing a) intergrowth of atokite, mertieite-II [Pd8Sb3] and telluroan sobolevskite [(Pd,Pt)(Bi,Te)] within tetra-auricupride rim. (CanMin, v 42, p 611).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
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Barahonaite-(Al): (Ca,Cu,Na,Fe+++,Al )12Al2(AsO4)8(OH,Cl)x·nH2O

Comments: SEM images of barahonaite-(Al) showing the boxwork-like form of the surface of one of the beads. (CanMin, v46:205).
Location: Dolores prospect near the village of Pastrana, in the Province of Murcia of southeastern Spain. Scale: See Image.
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Barahonaite-(Fe): (Ca,Cu,Na,Fe+++,Al )12Fe+++2(AsO4)8(OH,Cl)x·nH2O

Comments: SEM image of tapered aggregates of bladed barahonaite-(Fe). (CanMin, v46:205).
Location: Dolores prospect near the village of Pastrana, in the Province of Murcia of southeastern Spain. Scale: See Image.
© Canadian Mineralogist

Bismuth: Bi  
Matildite: AgBiS2  
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.
© Canadian Mineralogist

Bismuthinite: Bi2S3  
Matildite: AgBiS2  
Bismuth: Bi

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.
© Canadian Mineralogist

Bobjonesite: VO(SO4)(H2O)3

Comments: The silicified log and its coalified margin that hosts bobjonesite and other sulfate minerals. (CanMin, 41:85).
Location: Temple Mountain, Emery County, Utah, USA. Scale: Bob Jones is shown for scale.
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Borcarite: Ca4MgB4O6(OH)6(CO3)2  
Numanoite: Ca4CuB4O6(OH)6(CO3)2

Comments: Zoned borcarite (Bc) crystal with a core of green numanoite (Nm). CanMin 45:307.
Location: Fuka mine, 40 km west-northwest of Okayama City, western Japan. Scale: See Image.
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Bornite: Cu5FeS4  
Briartite: Cu2(Zn,Fe)GeS4  
Catamarcaite: Cu6GeWS8

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

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

Bradaczekite: NaCu4(AsO4)3

Comments: SEM image of the aggregates of bradaczekite crystals. (CanMin, v39 , p 1116).
Location: North Breach of the Great fissure Tolbachik eruption (GFTE) in 1975-1976, Kamchatka Peninsula, Russia. Scale: Magnification: ~ 600x.
© Canadian Mineralogist

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

Brodtkorbite: Cu2HgSe2

Comments: Polished section with partially crossed polarizers showing brodtkorbite (br) in association with tiemannite (ti) and berzelianite (bz). (CanMin, v40:225).
Location: Telethermal selenide vein-type assemblage at the Tuminico Ia selenium deposit, Sierra de Cacho (Sierra de Umango) district, La Rioja, Argentina. Scale: Picture Size 0.5 x 0.35 mm.
© Canadian Mineralogist

Burgessite: Co2(H2O)4[(AsO3OH)]2·(H2O)

Comments: Rosettes of burgessite showing the individual lath-like crystals and their adamantine luster. (CanMin, v47:159).
Location: Keeley mine, South Lorrain Township, Timiskaming District, Ontario, Canada.. Scale: Picture size 1.1 mm.
© Canadian Mineralogist

Burgessite: Co2(H2O)4[(AsO3OH)]2·(H2O)

Comments: SEM photographs of a rosette of burgessite. (CanMin, v47:159).
Location: Keeley mine, South Lorrain Township, Timiskaming District, Ontario, Canada.. Scale: Picture size50 µm.
© Canadian Mineralogist

Burnsite: KCdCu7O2(SeO3)2Cl9  
Cotunnite: PbCl2

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

Bussyite-(Ce): (Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4

Comments: SEM image of a spray of bussyite-(Ce) with hexagonal plates of catapleiite. Inset image shows detail of crystal terminations. (CanMin, v47:193).
Location: Poudrette quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada. Scale: Picture size 1.5mm.
© Canadian Mineralogist