Thomas Witzke's Image Gallery

Images from Thomas Witzke

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Thomas Witzke's Image Gallery With 1036 Images

Simonellite Image

Images:

Simonellite: C19H24

Comments: Colorless to white Simonellite on fossil wood.
Location: Fognano, Tuscany, Italy. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Simonellite Image

Images:

Simonellite: C19H24

Comments: Colorless to white Simonellite on fossil wood.
Location: Fognano, Tuscany, Italy. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Simonkolleite Image

Images:

Simonkolleite: Zn5(OH)8Cl2·(H2O)

Comments: Very small colorless crystals with hexagonal shape of simonkolleite.
Location: Richelsdorf Smelter, Süss, Richelsdorf District, Hesse, Germany. Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

Simonkolleite Image

Images:

Simonkolleite: Zn5(OH)8Cl2·(H2O)

Sophiite Image

Images:

Sophiite: Zn2(SeO3)Cl2

Comments: White, tabular crystal of sophiite in matrix.
Location: Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Sophiite Image

Images:

Sophiite: Zn2(SeO3)Cl2

Sphaerobertrandite Image

Images:

Sphaerobertrandite: Be3SiO4(OH)2

Comments: White to pale brownish, radial-concentric aggregates of sphaerobertrandite.
Location: Sengischorr Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Sphaerobertrandite Image

Images:

Sphaerobertrandite: Be3SiO4(OH)2

Srebrodolskite Image

Images:

Srebrodolskite: Ca2Fe+++2O5
Periclase: MgO

Comments: Black grains of srebrodolskite with white periclase.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Srebrodolskite Image

Images:

Srebrodolskite: Ca2Fe+++2O5
Periclase: MgO

Stannopalladinite Image

Images:

Stannopalladinite: (Pd,Cu)3Sn2 (?)

Comments: PPL polished section image of hexagonal crystal of stannopalladinite (white with a very slight pinkish tint) in white atokite. Inset image x-polarizers.
Location: Oktyabrski Mine, Talnakh, Ural, Russia. Scale: Picture Size 0.57 mm.
© Thomas Witzke

Stannopalladinite Image

Images:

Stannopalladinite: (Pd,Cu)3Sn2 (?)

Stibivanite Image

Images:

Stibivanite: Sb+++2V++++O5

Comments: Green crystals of stibivanite on matrix.
Location: Buca della Vena Mine, Stazzema (Ponte Stazzemese), Versilia, Apuan Alps, Lucca Province, Tuscany, Italy. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Stibivanite Image

Images:

Stibivanite: Sb+++2V++++O5

Straczekite Image

Images:

Straczekite: (Ca,K,Ba)(V5+,V4+)8O20·3H2O

Comments: Greenish-black, prismatic-acicular crystals of straczekite.
Location: Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland Co., Arkansas, USA. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Straczekite Image

Images:

Straczekite: (Ca,K,Ba)(V5+,V4+)8O20·3H2O

Strontioginorite Image

Images:

Strontioginorite: (Sr,Ca)2B14O23·8(H2O)

Comments: Silky white strontioginorite with anhydrite.
Location: Kohnstein Quarry, Harz Mts, Thuringia, Germany. Scale: Sample Size 4 cm.
© Thomas Witzke / Abraxas-Verlag

Strontioginorite Image

Images:

Strontioginorite: (Sr,Ca)2B14O23·8(H2O)

Comments: Silky white strontioginorite with anhydrite.
Location: Kohnstein Quarry, Harz Mts, Thuringia, Germany. Scale: Sample Size 4 cm.
© Thomas Witzke / Abraxas-Verlag

Sudoite Image

Images:

Sudoite: Mg2(Al,Fe+++)3Si3AlO10(OH)8
Manganite: MnO(OH)

Comments: Pinkish to nearly white earthy sudoite with dark manganite.
Location: Ilfeld, Nordhausen, Erfurt district, Harz Mts, Thuringia, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Sudoite Image

Images:

Sudoite: Mg2(Al,Fe+++)3Si3AlO10(OH)8
Manganite: MnO(OH)

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