Thomas Witzke's Image Gallery

Thomas Witzke's Image Gallery
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Images from Thomas Witzke

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Thomas Witzke's Image Gallery With 518 Images

Decrespignyite-(Y) Image

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Decrespignyite-(Y): (Y,REE)4Cu(CO3)4Cl(OH)5·2(H2O)

Comments: Blue, rounded aggregates of decrespignyite-(Y) on matrix.
Location: Paratoo copper mine, Yunta, Olary Province, South Australia, Australia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Delafossite Image

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Delafossite: Cu+Fe+++O2

Comments: Black crystals of delafossite on matrix.
Location: Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Denisovite Image

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Denisovite: (K,Na)Ca2Si3O8(F,OH)

Comments: Grayish-white fibrous denisovite.
Location: Eveslogchorr Mt , Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Denningite Image

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Denningite: (Mn,Zn)Te2O5  
Tellurite: TeO2

Comments: Vitreous colorless to very pale yellowish elongated crystals denningite with yellow tellurite.
Location: Bambolla Mine, Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Derbylite Image

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Derbylite: (Fe+++,Fe++,Ti)7Sb+++O13(OH)

Comments: Small black crystals of derbylite in matrix.
Location: Buca della Vena Mine, Stazzema (Ponte Stazzemese), Versilia, Apuan Alps, Lucca Province, Tuscany, Italy. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Dickthomssenite Image

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Dickthomssenite: Mg(V+++++2O6)·7(H2O)

Comments: Yellowish white, prismatic crystals of dickthomssenite on matrix.
Location: Firefly-Pigmay Mine, La Sal Quadrangle, San Juan Co., Utah, USA. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Dimorphite Image

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Dimorphite: As4S3

Comments: Orange to yellow-orange crystals of dimorphite on matrix.
Location: Solfatara di Pozzuoli, Vesuvius, Naples, Naples province, Campania, Italy. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Dolerophanite Image

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Dolerophanite: Cu2(SO4)O  
Chalcanthite: CuSO4·5(H2O)  
Fedotovite: K2Cu++3(SO4)3O

Comments: Brown crystals of dolerophanite with blue chalcanthite and green fedotovite.
Location: Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Dufrenite Image

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Dufrenite: Fe++Fe+++4(PO4)3(OH)5·2(H2O)

Comments: Dark olive-greenish crystal of dufrenite on matrix.
Location: Rengersdorf, Görlitz, Oberlausitz, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Dumortierite Image

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Dumortierite: Al6.5-7(BO3)(SiO4)3(O,OH)3

Comments: Blue dumortierite in matrix.
Location: Hartmannsdorf, Chemnitz, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Duranusite Image

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Duranusite: As4S  
Realgar: AsS

Comments: Small black Duranusite in orange-red realgar matrix.
Location: Duranus, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Dypingite Image

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Dypingite: Mg5(CO3)4(OH)2·5(H2O)

Comments: White spherical aggregates of dypingite on matrix.
Location: Jeremias Glück Mine (Fairy Grotto), Garnsdorf, Saalfeld, Thuringia, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Edoylerite Image

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Edoylerite: Hg++3Cr++++++O4S2  
Cinnabar: HgS

Comments: Yellow prismatic crystals of edoylerite with red cinnabar.
Location: Clear Creek Claim (Clear Creek Mine), New Idria district, San Benito Co., California, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Efremovite Image

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Efremovite: (NH4)2Mg2(SO4)3

Comments: White, massive efremovite. The mineral is hygroscopic and must be stored in a closed box.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Eglestonite Image

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Eglestonite: Hg6Cl3O(OH) (?)

Comments: Small yellow crystals and massive aggregates of eglestonite.
Location: Landsberg (Moschellandsberg), Obermoschel, Palatinate, Rhineland-Palatinate, Germany. Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

Ellestadite-(OH) Image

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Ellestadite-(OH): Ca5(SiO4,SO4)3(OH,Cl,F)  
Yeelimite: Ca4Al6O12(SO4)

Comments: Ye'elimite and hydroxylellestadite intimately intergrown as a brownish aggregate in massive anhydrite.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Elpasolite Image

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Elpasolite: K2NaAlF6

Comments: Colorless crystal of elpasolite in matrix.
Location: Cetine di Cotorniano mine (Cetine mine), Rosia, Siena, Tuscany, Italy. Scale: Picture size 2.5 mm.
© Thomas Witzke / Abraxas-Verlag

Emmonsite Image

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Emmonsite: Fe+++2Te++++3O9·2(H2O)  
Schmitterite: (UO2)TeO3

Comments: Yellow schmitterite with green emmonsite.
Location: Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Ericaite Image

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Ericaite: (Fe++,Mg,Mn)3B7O13Cl

Comments: Cubic crystal ericaite.
Location: Bischofferode, Nordhausen, Erfurt district, Harz Mts, Thuringia, Germany. Scale: Crystal size 3.7 mm.
© Thomas Witzke / Abraxas-Verlag

Eriochalcite Image

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Eriochalcite: CuCl2·2(H2O)

Comments: Green grains of eriochalcite from the eruption of 1875, Vesuvius volcano.
Location: Vesuvius volcano. Vesuvius, Naples, Naples province, Campania, Italy. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag
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