Tom Loomis's Image Gallery

Manganiandrosite-(La): (Mn,Ca)(La,Ce,Ca,Nd)AlMn+++Mn++(SiO4)(Si2O7)O(OH)

Comments: Orange glassy crystalline manganiandrosite-(La).
Location: Mt. Petalon, Andros Island, Cyclades, Greece. Scale: Thumbnail.
© Tom Loomis / Dakota Matrix

Manganiandrosite-(La): (Mn,Ca)(La,Ce,Ca,Nd)AlMn+++Mn++(SiO4)(Si2O7)O(OH)

Comments: Orange glassy crystalline manganiandrosite-(La).
Location: Mt. Petalon, Andros Island, Cyclades, Greece. Scale: Thumbnail.
© Tom Loomis / Dakota Matrix

Manganohornesite: (Mn,Mg)3(AsO4)2·8(H2O)

Comments: Micro, white, needles of manganese-hornesite to about 0.75mm on hausmannite-rich matrix.
Location: Langban, Varmland, Sweden. Scale: 5.5 x 4 x 2.5cm.
© Tom Loomis / Dakota Matrix

Manganohornesite: (Mn,Mg)3(AsO4)2·8(H2O)

Comments: Micro, white, needles of manganese-hornesite to about 0.75mm on hausmannite-rich matrix.
Location: Langban, Varmland, Sweden. Scale: 5.5 x 4 x 2.5cm.
© Tom Loomis / Dakota Matrix

Manganvesuvianite: Ca19Mn+++(Al,Mn+++,Fe+++)10(Mg,Mn++)2Si18O69(OH)9

Comments: Dark cherry red prismatic, crystals or manganvisuvianite to 2mm on matrix.
Location: N'Chwanning mine, Kalahari Mn Field, North Cape Province, South Africa. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Manganvesuvianite: Ca19Mn+++(Al,Mn+++,Fe+++)10(Mg,Mn++)2Si18O69(OH)9

Comments: Dark cherry red prismatic, crystals or manganvisuvianite to 2mm on matrix.
Location: N'Chwanning mine, Kalahari Mn Field, North Cape Province, South Africa. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Margarosanite: Pb(Ca,Mn++)2Si3O9

Comments: Clear or white, long, thin bladed crystals of margarosanite on matrix.
Location: Langban, Varmland, Sweden. Scale: Crystal size 1cm.
© Tom Loomis / Dakota Matrix

Margarosanite: Pb(Ca,Mn++)2Si3O9

Comments: Clear or white, long, thin bladed crystals of margarosanite on matrix.
Location: Langban, Varmland, Sweden. Scale: Crystal size 1cm.
© Tom Loomis / Dakota Matrix

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

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

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

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

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

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

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