Tom Loomis's Image Gallery

Uranospathite: Al1-x[ ]x[(UO2)(PO4)]2(H2O)20+3xF1-3x

Comments: Minute, less than 0.1cm platy yellow crystals or uranospahtite on matrix.
Location: Pedro Alvaro, Salamanca, Spain. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Uranospathite: Al1-x[ ]x[(UO2)(PO4)]2(H2O)20+3xF1-3x

Comments: Minute, less than 0.1cm platy yellow crystals or uranospahtite on matrix.
Location: Pedro Alvaro, Salamanca, Spain. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Uytenbogaardtite: Ag3AuS2

Comments: Gray crystal grains of uytenbogaardtite to 1mm throughout matrix with electrum.
Location: Bullfrog mine, Nye County, Nevada, USA. Scale: Slab 1cm thick 6x6cm.
© Tom Loomis / Dakota Matrix

Uytenbogaardtite: Ag3AuS2

Comments: Gray crystal grains of uytenbogaardtite to 1mm throughout matrix with electrum.
Location: Bullfrog mine, Nye County, Nevada, USA. Scale: Slab 1cm thick 6x6cm.
© Tom Loomis / Dakota Matrix

Vanadiocarpholite: Mn++V+++Al(Si2O6)(OH)4

Comments: Micro-fibrous tan crystals of vanadiocarpholite to 0.75mm.
Location: Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy. Scale: Picture size 2 mm.
© Tom Loomis / Dakota Matrix

Vanadiocarpholite: Mn++V+++Al(Si2O6)(OH)4

Comments: Micro-fibrous tan crystals of vanadiocarpholite to 0.75mm.
Location: Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy. Scale: Picture size 2 mm.
© Tom Loomis / Dakota Matrix

Variscite: AlPO4·2(H2O)

Comments: Deep rasberry red drusy micro crystals of variscite in vuggy matrix.
Location: Iron Monarch quarry, Iron Knob, South Australia, Australia. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Variscite: AlPO4·2(H2O)

Comments: Brilliant cherry red well-defined, clusters of variscite crystals forming tiny single spheroids on white quartz.
Location: Boa Vista, Galileia, Minas Gerais, Brazil. Scale: Sphere size 0.3 mm.
© Tom Loomis / Dakota Matrix

Variscite: AlPO4·2(H2O)

Comments: Deep rasberry red drusy micro crystals of variscite in vuggy matrix.
Location: Iron Monarch quarry, Iron Knob, South Australia, Australia. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Variscite: AlPO4·2(H2O)

Comments: Brilliant cherry red well-defined, clusters of variscite crystals forming tiny single spheroids on white quartz.
Location: Boa Vista, Galileia, Minas Gerais, Brazil. Scale: Sphere size 0.3 mm.
© Tom Loomis / Dakota Matrix

Villyaellenite: Mn++5(AsO3OH)2(AsO4)2·4(H2O)

Comments: Peach colored radial sprays of villyaellenite 2 to 3mm in size.
Location: Veta Negra mine, Pampa Larga, Copiapo, Atacama Province, Chile. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Villyaellenite: Mn++5(AsO3OH)2(AsO4)2·4(H2O)

Comments: Peach colored radial sprays of villyaellenite 2 to 3mm in size.
Location: Veta Negra mine, Pampa Larga, Copiapo, Atacama Province, Chile. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Vladimirite: Ca5(AsO3OH)2(AsO4)2·5(H2O)

Comments: Snow white radial, acicular sprays, thick on calcite matrix.
Location: Ait Ahmane, Bou Azzer district,, Morocco. Scale: Crystal size 5 mm.
© Tom Loomis / Dakota Matrix

Vladimirite: Ca5(AsO3OH)2(AsO4)2·5(H2O)

Comments: Snow white radial, acicular sprays, thick on calcite matrix.
Location: Ait Ahmane, Bou Azzer district,, Morocco. Scale: Crystal size 5 mm.
© Tom Loomis / Dakota Matrix

Walentaite: (Ca,Mn++,Fe++)Fe+++3(AsO4)(PO4)3(PO3OH)

Comments: Greenish yellow, flattened, radial, crystalline aggregates of walentaite on quartz.
Location: White Elephant mine, Custer County, South Dakota, USA. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Walentaite: (Ca,Mn++,Fe++)Fe+++3(AsO4)(PO4)3(PO3OH)

Comments: Greenish yellow, flattened, radial, crystalline aggregates of walentaite on quartz.
Location: White Elephant mine, Custer County, South Dakota, USA. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Wavellite: Al3(PO4)2(OH,F)3·5(H2O)

Comments: Green prismatic crystals of wavellite in complete radial stellar aggregate.
Location: Flinders Range, South Australia, Australia. Scale: Sphere size 8 mm.
© Tom Loomis / Dakota Matrix

Wavellite: Al3(PO4)2(OH,F)3·5(H2O)

Comments: Green prismatic crystals of wavellite in complete radial stellar aggregate.
Location: Flinders Range, South Australia, Australia. Scale: Sphere size 8 mm.
© Tom Loomis / Dakota Matrix

Weissbergite: TlSbS2

Comments: A metallic grain of weissbergite in matrix.
Location: Lookout Pass, Tooele Co., Utah, USA. Scale: Grain size 0.75 mm.
© Tom Loomis / Dakota Matrix

Weissbergite: TlSbS2

Comments: A metallic grain of weissbergite in matrix.
Location: Lookout Pass, Tooele Co., Utah, USA. Scale: Grain size 0.75 mm.
© Tom Loomis / Dakota Matrix