Tom Loomis's Image Gallery

Plagionite: Pb5Sb8S17

Comments: Lead-gray crystals (to 2mm) of plagionite with a bluish tarnish on vuggy white calcite matrix.
Location: Wolfsberg, Harz, Germany. Scale: 3.5 x 2.5 x 1.5cm.
© Tom Loomis / Dakota Matrix

Plimerite: ZnFe+++4(PO4)3(OH)5

Comments: Light olive green to dark green hemispheres and crusts of plimerite. From Author's study material.
Location: Broken Hill, Yancowinna Co, New South Wales, Australia. Scale: Size: Miniature.
© Tom Loomis / Dakota Matrix

Plumbophyllite: Pb2Si4O10·H2O

Comments: Light blue, compact, radial, thin platy crystals of plumbophyllite in matrix.
Location: Blue Bell Claims, San Bernardino Co., California, USA. Scale: Specimen size 3 x 2.5 x 2 cm.
© Tom Loomis / Dakota Matrix

Potassiccarpholite: (K,Na,[ ])(Li,Mn++)2Al)4Si4O12(OH)4(F,OH)4

Comments: Tan prismatic crystal sprays of potassic-carpholite to about 2mm in matrix.
Location: Sawtooth Batholith, near Centerville, Boise Co., Idaho, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Pumpellyite-(Mg): Ca2MgAl2(SiO4)(Si2O7)(OH)2·(H2O)

Comments: Greenish, flattened, prismatic crystals of pumpellyite-(Mg) ? to 3mm.
Location: Deere Island, Novato, Marin Co., California, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Pyroaurite: Mg6Fe+++2(CO3)(OH)16·4(H2O)

Comments: Green, hexagonal plates of pyroaurite in quartz.
Location: Varmland, Sweden. Scale: Crystal size 1 mm.
© Tom Loomis / Dakota Matrix

Pyroaurite: Mg6Fe+++2(CO3)(OH)16·4(H2O)

Comments: Golden yellow platy crystals of pyroaurite to 1mm on matrix.
Location: Langban mine, Varmland, Sweden. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Pyrosmalite-(Mn): (Mn,Fe++)8Si6O15(OH,Cl)10

Comments: Hexagonal, light brown crystals of manganpyrosmalite.
Location: Nordmark, Filipstad, Varmland, Sweden. Scale: Crystal size 1.5 mm.
© Tom Loomis / Dakota Matrix

Pyrostilpnite: Ag3SbS3

Comments: Deep bright-red, acicular crystals of pyrostilpnite to 1mm in vuggy sulfide matrix.
Location: Cerro Rico, Potosi City, Potosi Dept., Bolivia. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Quenselite: PbMn+++O2(OH)

Comments: Jet black tabular crystals of quenselite, some striated on matrix.
Location: Langban, Varmland, Sweden. Scale: Crystal size 1.75mm.
© Tom Loomis / Dakota Matrix

Rabbittite: Ca3Mg3(UO2)2(CO3)6(OH)4·18(H2O)

Comments: Fine, yellow, acicular sprays of rabbittite to about 1mm on matrix.
Location: Hideout mine, San Juan Co., Utah, USA. Scale: 20x10x4mm.
© Tom Loomis / Dakota Matrix

Rasvumite: KFe2S3

Comments: Reddish brown micro crystals of rasvumite in vugs to about 0.75mm.
Location: Kirovskiy mine, Khibina massif, Kola Peninsula, Russia. Scale: 3.5 x 2.5 x 2.5cm.
© Tom Loomis / Dakota Matrix

Reddingite: Mn++3(PO4)2·3(H2O)

Comments: Golden brown to brown, highly lustrous, pseudo-octahedral crystals of reddinite.
Location: Cigana mine, Galileia, Minas Gerais, Brazil. Scale: Crystal size 0.5 mm.
© Tom Loomis / Dakota Matrix

Reppiaite: Mn++5[(V,As)O4]2(OH)4

Comments: Vitreous orange crystals of reppiaite embedded in matrix.
Location: Gambatesa mine, Genova, Ligurai, Italy. Scale: Crystal size 0.5mm.
© Tom Loomis / Dakota Matrix

Rhodonite: (Mn++,Fe++,Mg,Ca)SiO3

Comments: Deep red blocky prismatic crystals of rhodonite to 3cm.
Location: Broken Hill mine, New South Wales, Australia. Scale: 6.5 x 5 x 4cm.
© Tom Loomis / Dakota Matrix

Rockbridgeite: (Fe++,Mn)Fe+++4(PO4)3(OH)5  
Lindbergite: Mn(C2O4)·2(H2O)

Comments: Rare organic mineral - lindbergite (Mn dihydrate oxalate) in white patches on rockbridgeite matrix.
Location: Boca Rica mine, Sapucaia do Norte, Gilileia, Minas Gerais, Brazil. Scale: Spot size 1 mm.
© Tom Loomis / Dakota Matrix

Roscherite: Ca(Mn++,Fe++)5Be4(PO4)6(OH)4·6(H2O)  
Parafransoletite: Ca3Be2(PO4)2(PO3,OH)2·4(H2O)

Comments: White, crystalline aggregate sprays of parafransoletite on dark reddish brown roscherite with massive, white, sucrosic whitlockite.
Location: Tip Top mine, Custer County, South Dakota, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Ruizite: CaMn+++Si2O6(OH)·2(H2O)

Comments: Deep reddish brown crystals of ruizite as radial, acicular sprays to 0.1mm.
Location: Christmas mine, Gila Co., Arizona, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Sahlinite: Pb14(AsO4)2O9Cl4

Comments: Light lemon yellow sahlinite on dark hausmannite and white dolomite matrix.
Location: Langban mine, Filipstad, Värmland , Sweden. Scale: Crystal size 1.5cm.
© Tom Loomis / Dakota Matrix

Sanbornite: BaSi2O5  
Bazirite: BaZrSi3O9

Comments: Clear glassy minute grains of bazinite to 1mm through out matrix of milky-white sanbornite. The bazirite fluoresces light blue.
Location: Snow Cap mine, Rush Creek, Fresno Co., California, USA. Scale: 6.5 x 3 x 2.5cm.
© Tom Loomis / Dakota Matrix