Tom Loomis's Image Gallery

Mendozavilite: (Na,Mg)Ca2[Mo++++++8P+++++2Fe+++3O36(OH)]·n(H2O), n~9

Comments: Light yellow micro crystals of mendozavilite and earthy alterations in vuggy quartz matrix with black schorl.
Location: Rustler mine, Tooele Co., Utah, USA. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Menezesite: Ba2MgZr4(BaNb12O42)·12H2O

Comments: Orange rhombododecahedral crystals of menezesite to 0.75mm on matrix.
Location: Jacupiranga mine, Cajati county, Sao Paulo, Brazil. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Mereheadite: Pb2O(OH)Cl

Comments: Yellowish crystals of mereheadite to 1mm embedded in matrix.
Location: Merehead quarry, Shepton Mallet, Somerset, England. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Metalodevite: Zn(UO2)2(AsO4)2·10(H2O)

Comments: Micro crystals of pale yellow metalodevite to 1 mm.
Location: Rivieral, Lodeve, Herault, Languedoc-Roussillon, France. Scale: Specimen Size 5 x 2 x 3 cm.
© Tom Loomis / Dakota Matrix

Metarossite: CaV2O6·2(H2O)

Comments: Bright yellow platy crystals to about 0.5mm covering sandstone matrix.
Location: Arrowhead Claim, San Miguel Co., Colorado, USA. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Metauranocircite: Ba(UO2)2(PO4)2·6-8(H2O)

Comments: Lemon yellow platy meta-uranocircite crystals on matrix.
Location: Schneeberg, Saxony, Germany. Scale: Crystal size 2 mm.
© Tom Loomis / Dakota Matrix

Metavauxite: Fe++Al2(PO4)2(OH)2·8(H2O)

Comments: Creamy colored prismatic metavauxite crystals to 3mm.
Location: Siglo XX, Llallagua, Bolivia. Scale: Picture size 3 mm.
© Tom Loomis / Dakota Matrix

Meurigite-K: [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Yellow, radial acicular sprays of meurigite to about 0.75 mm.
Location: Teskov quarry, near Prague, Bohemia, Czech Republic. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Meurigite-K: [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Yellow-green spheroidal crystals of meurigite to 0.1mm, in a 5mm vug in black rockbridgeite(?) matrix.
Location: Hagendorf Sud Pegmatite, Oberpfalz, Bavaria, Germany. Scale: Picture size 1.2 cm.
© Tom Loomis / Dakota Matrix

Meurigite-Na: [Na(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Pale pearly yellow platy Meurigite-Na crystals all over vuggy matrix.
Location: Tom's Phosphate quarry, Kapunda, South Australia, Australia. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Miargyrite: AgSbS2  
Aramayoite: Ag3Sb2(Sb,Bi)S6

Comments: Aramayoite is present as large thin plates (blue iridescence) to 1mm in massive gray miargyrite matrix.
Location: Julcani Silver mine, Huancavelica Dept., Peru. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Micheelsenite: (Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O)

Comments: Cotton ball bundles of white, fibrous michellsenite crystals on albite.
Location: Mont Saint-Hilaire, Rouville Co., Quebec, Canada. Scale: Sample size 4 x 3 x 1.5 cm.
© Tom Loomis / Dakota Matrix

Minyulite: KAl2(PO4)2(OH,F)·4(H2O)  
Sincosite: Ca(V++++O)2(PO4)2·5(H2O)

Comments: Pale greenish white acicular radial sprays of minyulite to 8mm with small, green, tabular sincosite.
Location: Ross Hannibal mine, Lawrence County, South Dakota. Scale: Picture size 2 cm.
© Tom Loomis / Dakota Matrix

Minyulite: KAl2(PO4)2(OH,F)·4(H2O)  
Aldermanite: Mg5Al12(PO4)8(OH)22·32(H2O)

Comments: White, blocky aldermanite crystals to 2mm completely covering one face of matrix with colorless prismatic Minyulite crystals in sprays to 3mm.
Location: Tom's Phosphate quarry, Kapunda, South Australia, Australia. Scale: Overall: 2 x 1.5 x 2 cm.
© Tom Loomis / Dakota Matrix

Montgomeryite: Ca4MgAl4(PO4)6(OH)4·12(H2O)  
Tiptopite: K2(Na,Ca)2Li3Be6(PO4)6(OH)2·(H2O)  
Englishite: K3Na2Ca10Al15(PO4)21(OH)7·26(H2O)

Comments: Red montgomeryite lath-like crystals to 1mm in 2mm rosettes associated with clear, acicular sprays of tiptopite to 0.75mm and white cottonball-like crystals of englishite to 0.2mm.
Location: Tip Top mine, Custer Co., South Dakota, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Morinite: NaCa2Al2(PO4)2(F,OH)5·2(H2O)

Comments: Sky blue spheroidal to globular cyrstals of cuprian morinite to 1mm with other phosphates.
Location: Silver Coin Mine, Humboldt Co., Nevada, USA. Scale: Overall: 6 x 5 x 2.5 cm.
© Tom Loomis / Dakota Matrix

Muscovite: KAl2(Si3Al)O10(OH,F)2  
Aluminoceladonite: KAl(Mg,Fe++)[ ]Si4O10(OH)2

Comments: Large, 1cm, purple crystals of muscovite/leucophyllite, (var. alurgite which is an intermediate composition to muscovite and leucophyllite (aluminoceladonite).
Location: Ultevis, Sweden. Scale: 5x3.5x3cm.
© Tom Loomis / Dakota Matrix

Nadorite: PbSbO2Cl

Comments: Blocky, yellowish brown crystals of nadorite on matrix.
Location: Langban mine, Filipstad , Värmland, Sweden. Scale: Crystal size 1 mm.
© Tom Loomis / Dakota Matrix

Nevadaite: (Cu++,[ ],Al,V+++)6[Al8(PO4)8F8] (H2O)23

Comments: Robin's egg blue radiating acicular sprays of nevadaite to about 0.3 mm.
Location: Gold Quarry mine, Eureka Co., Nevada, USA. Scale: Picture size 2 cm.
© Tom Loomis / Dakota Matrix

Nickelskutterudite: (Ni,Co)As3-x

Comments: Gray, blocky crystals of nickel-skutterudite (chloanthite) with minor yellow pyrite.
Location: Gowganda, Ontario, Canada. Scale: Crystal size 3 mm.
© Tom Loomis / Dakota Matrix