American Mineralogist's Image Gallery

Suhailite: (NH4)Fe3(Si3Al)O10(OH)2

Comments: PPL thin-section showing unoriented grains of graphite-rich golden suhailite. Suh - suhalite, Ann - annite, Sil - sillimanite. (AmMin v94:211).
Location: Betic Cordillera gneisses (Spain). Scale: See Image.
© American Mineralogist

Suhailite: (NH4)Fe3(Si3Al)O10(OH)2

Comments: PPL thin-section showing unoriented grains of graphite-rich golden suhailite. Suh - suhalite, Ann - annite, Sil - sillimanite. (AmMin v94:211).
Location: Betic Cordillera gneisses (Spain). Scale: See Image.
© American Mineralogist

Suredaite: PbSnS3

Comments: BSE image of a large zoned crystal of suredaite, chemically SU-3, surrounded (replaced) by SU-2. White is skeletal galena. (AmMin 85:1068).
Location: Pirquitas Ag-Sn deposit (Province Jujuy, NW-Argentina). Scale: See Image.
© American Mineralogist

Suredaite: PbSnS3

Comments: BSE image of a large zoned crystal of suredaite, chemically SU-3, surrounded (replaced) by SU-2. White is skeletal galena. (AmMin 85:1068).
Location: Pirquitas Ag-Sn deposit (Province Jujuy, NW-Argentina). Scale: See Image.
© American Mineralogist

Surinamite: (Mg,Fe++)3Al4BeSi3O16

Comments: PPL thin-section image of blue surinamite (Sur) enclosing orthopyroxene (Opx) and sillimanite (Sil) with corderite (Crd), and quartz (Qtz). AmMin, v65:1474.
Location: South Harris Igneous Complex, N.W. Scotland. Scale: Picture Size 1.2 mm.
© American Mineralogist

Surinamite: (Mg,Fe++)3Al4BeSi3O16

Comments: PPL thin-section image of blue surinamite (Sur) enclosing orthopyroxene (Opx) and sillimanite (Sil) with corderite (Crd), and quartz (Qtz). AmMin, v65:1474.
Location: South Harris Igneous Complex, N.W. Scotland. Scale: Picture Size 1.2 mm.
© American Mineralogist

Tatyanaite: (Pt,Pd,Cu)9Cu3Sn4  
Rustenburgite: (Pt,Pd)3Sn

Comments: Back-scattered electron images showing inclusions of rustenburgite intergrown with taimyrite-tatyanaite aggregates. (AmMin, v 42, p 608).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
© American Mineralogist

Tatyanaite: (Pt,Pd,Cu)9Cu3Sn4  
Rustenburgite: (Pt,Pd)3Sn

Comments: Back-scattered electron images showing inclusions of rustenburgite intergrown with taimyrite-tatyanaite aggregates. (AmMin, v 42, p 608).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
© American Mineralogist

Terranovaite: (Na,Ca)8(Si68Al12)O160·29(H2O)

Comments: B&W image of terranovaite crystal. (AmMin, v82:423).
Location: Jurassic Ferrar dolerites of Mt. Adamson, Northern Victoria Land, Antarctica. Scale: See Image.
© American Mineralogist

Terranovaite: (Na,Ca)8(Si68Al12)O160·29(H2O)

Comments: B&W image of terranovaite crystal. (AmMin, v82:423).
Location: Jurassic Ferrar dolerites of Mt. Adamson, Northern Victoria Land, Antarctica. Scale: See Image.
© American Mineralogist

Tetrataenite: FeNi

Comments: a) B&W reflected-light image of lightly etched tetraraenite (Tt), cloudy taenite (CT), and kamacite (K) and b) X-polarizer image showing unetched optical anisotropy and irregular crystals in the tetrataenite rim.
Location: Estherville mesosiderite meteorite. AmMin v65:624. Scale: Scale Bar 50 µm.
© American Mineralogist

Tetrataenite: FeNi

Comments: a) B&W reflected-light image of lightly etched tetraraenite (Tt), cloudy taenite (CT), and kamacite (K) and b) X-polarizer image showing unetched optical anisotropy and irregular crystals in the tetrataenite rim.
Location: Estherville mesosiderite meteorite. AmMin v65:624. Scale: Scale Bar 50 µm.
© American Mineralogist

Tistarite: Ti2O3  
Khamrabaevite: (Ti,V,Fe)C

Comments: BSE image showing one tistarite (Ti2O3) grain along with khamrabaevite (TiC) and corundum. The cross marks where the electron back-scattered diffraction pattern (shown in Fig. 4) was collected. (AmMin, v94:841.
Location: From inside a chondrule from the Allende meteorite. Scale: See Image.
© American Mineralogist

Tistarite: Ti2O3  
Khamrabaevite: (Ti,V,Fe)C

Comments: BSE image showing one tistarite (Ti2O3) grain along with khamrabaevite (TiC) and corundum. The cross marks where the electron back-scattered diffraction pattern (shown in Fig. 4) was collected. (AmMin, v94:841.
Location: From inside a chondrule from the Allende meteorite. Scale: See Image.
© American Mineralogist

Tschortnerite: Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]·x(H2O), x>=20

Comments: Scanning electron micrograph of tschortnerite. (AmMin 83:608).
Location: Ca-rich xenolith at the Bellberg volcano near Mayen, Eifel, Germany. Scale: Scale Bar 20 µm.
© American Mineralogist

Tschortnerite: Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]·x(H2O), x>=20

Comments: Scanning electron micrograph of tschortnerite. (AmMin 83:608).
Location: Ca-rich xenolith at the Bellberg volcano near Mayen, Eifel, Germany. Scale: Scale Bar 20 µm.
© American Mineralogist

Tumchaite: Na2(Zr,Sn)Si4O11·2(H2O)

Comments: SEM photomicrograph of typical tumchaite crystals shaped by the prism {hkl}, and by two pinacoids {100} and {h0l}. Grains are tabular on (100), elongated along [001]. (AmMin 85:1517).
Location: Vuoriyarvi alkali-ultrabasic massif, Murmansk Region, Russia. Scale: See Image.
© American Mineralogist

Tumchaite: Na2(Zr,Sn)Si4O11·2(H2O)

Comments: SEM photomicrograph of typical tumchaite crystals shaped by the prism {hkl}, and by two pinacoids {100} and {h0l}. Grains are tabular on (100), elongated along [001]. (AmMin 85:1517).
Location: Vuoriyarvi alkali-ultrabasic massif, Murmansk Region, Russia. Scale: See Image.
© American Mineralogist

Vajdakite: [(MoO2)2(H2O)2As2O5]·(H2O)

Comments: Scanning electron microscope photograph of aggregate of acicular vajdakite crystals (AmMin, 87:984).
Location: Jáchymov, NW Bohemia, Czech Republic. Scale: 300x magnification.
© American Mineralogist

Vajdakite: [(MoO2)2(H2O)2As2O5]·(H2O)

Comments: Scanning electron microscope photograph of aggregate of acicular vajdakite crystals (AmMin, 87:984).
Location: Jáchymov, NW Bohemia, Czech Republic. Scale: 300x magnification.
© American Mineralogist