Tom Loomis's Image Gallery

Arthurite: CuFe+++2(AsO4,PO4,SO4)2(O,OH)2·4(H2O)

Comments: Radiating sprays of acicular arthurite.
Location: Majuba Hill mine, Pershing County, Nevada, USA. Scale: Spray size 2.5 mm.
© Tom Loomis / Dakota Matrix

Artsmithite: Hg+4Al(PO4)1.74(OH)1.78

Comments: White or faint green platy micro crystals of artsmithite on matrix.
Location: Funderburk prospect, Pike County, Arkansas, USA. Scale: Crystal size 0.5 mm.
© Tom Loomis / Dakota Matrix

Asbolane: (Co,Ni)1-y(Mn++++O2)2-x(OH)2-2y+2x·n(H2O)

Comments: Brownish red dull grains of asbolane to 2mm in matrix.
Location: Lipovka, Middla Urals, Russia. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Augelite: Al2(PO4)(OH)3

Comments: Green to white, striated, blocky augelite crystal on matrix.
Location: Ortega mine, Ancash dept., Peru. Scale: Crystal length 2.3 cm.
© Tom Loomis / Dakota Matrix

Bakhchisaraitsevite: Na2Mg5(PO4)4·7(H2O)

Comments: Yellow-brown, platy or thin tabular crystals of bakhchisaraitsevite from an Iron mine. Red arrow indicates the mineral.
Location: Kovdor massif, Kola peninsula, Russia. Scale: 5mm.
© Tom Loomis / Dakota Matrix

Baotite: Ba4(Ti,Nb)8Si4O28Cl

Comments: Brown masses of crystalline baotite in white quartz matrix.
Location: Inner Mongolia, Autonomous Region, China. Scale: Picture size 2 cm.
© Tom Loomis / Dakota Matrix

Barahonaite-(Fe): (Ca,Cu,Na,Fe+++,Al )12Fe+++2(AsO4)8(OH,Cl)x·nH2O  
Conichalcite: CaCu(AsO4)(OH)

Comments: Micro yellow, platy barahonaite-(Fe) crystals associated with green "beads" of conichalcite, yellowish, earthy arseniosiderite and micro olivenite crystals.
Location: Dolores prospect near the village of Pastrana, in the Province of Murcia of southeastern Spain. Scale: Specimen Size 6 x 4 x 2 cm.
© Tom Loomis / Dakota Matrix

Bario-orthojoaquinite: Fe++2(Ba,Sr)4Ti2[Si4O12]O2·(H2O)

Comments: Several 0.75mm brownish red micro-crystals of bario-orthojoaquinite in matrix.
Location: Dallas Gem mine, San Benito Co., California, USA. Scale: Picture size 0.5 cm.
© Tom Loomis / Dakota Matrix

Barysilite: Pb8Mn(Si2O7)3

Comments: Clear, round plates of barysilite on a manganiferous matrix.
Location: Langban, Varmland, Sweden. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Barytocalcite: BaCa(CO3)2

Comments: White prismatic barytocalcite crystals to 6mm. Former Eaton Collection.
Location: Alston Moor, Cumberland, England. Scale: 3x2x2cm.
© Tom Loomis / Dakota Matrix

Bazirite: BaZrSi3O9  
Sanbornite: BaSi2O5

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

Belovite-(La): (Sr,La,Ce,Ca)5(PO4)3(F,OH)

Comments: Yellow, pseudo-hexagonal crystal of belovite-(La) in calcite.
Location: Khibina massif, Kola Peninsula, Russia. Scale: Crystal size 1.5 mm.
© Tom Loomis / Dakota Matrix

Beryllite: Be3SiO4(OH)2·(H2O)

Comments: Dirty white, soft, chalky filling of beryllite (Green Arrow) in a vuggy matrix.
Location: Lovozero, Mt. Karnasurt, Kola Peninsula, Russia. Scale: Size Not Given.
© Tom Loomis / Dakota Matrix

Bigcreekite: BaSi2O5·4(H2O)  
Gillespite: BaFe++Si4O10  
Sanbornite: BaSi2O5

Comments: Tiny white, spherical patterns, halo-like crystals of bigcreekite to about 0.5mm and reddish gillespite in a matrix of pale yellowish sanbornite.
Location: Trumbull Peak, Mariposa Co., California, United States. Scale: 2.5 x 2 x 2cm.
© Tom Loomis / Dakota Matrix

Boggsite: NaCa2(Al5Si19O48)·17(H2O)

Comments: Pure white spheroidal boggsite crystal.
Location: Neer Road, Goble, Columbia Co., Oregon, USA. Scale: Crystal size 0.5 mm.
© Tom Loomis / Dakota Matrix

Bokite: (Al,Fe+++)1.3(V++++,Fe)8O20·4.7(H2O)

Comments: Tannish "spots" as very micro acicular bokite crystals filling in between grains. Eaton Collection.
Location: Monument #2 mine, Apache Co.,, Arizona, USA. Scale: Picture size 0.5 cm.
© Tom Loomis / Dakota Matrix

Bornemanite: BaNa3{(Na,Ti)4[(Ti,Nb)2O2Si4O14](F,OH)2}·PO4

Comments: Pale yellow or peach colored, massive bornemanite.
Location: Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Braggite: (Pt,Pd,Ni)S

Comments: Silvery grain of braggite in brassy-iridescent pentlandite matrix.
Location: Stillwater Complex, Sweetwater Co., Montana, USA. Scale: 3 mm grain.
© Tom Loomis / Dakota Matrix

Braunite-I: Mn++Mn+++6SiO12  
Macfallite: Ca2(Mn+++,Al)3(SiO4)(Si2O7)(OH)3  
Johnsenite-(Ce): Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2

Comments: Tiny - less than 1mm - maroon crystals of mcfallite suspended as inclusions in massive quartz along with larger spots of brown johnsenite-(Ce) and braunite.
Location: Artur mine, Jaguaracu, Minas Gerais, Brazil. Scale: Overall 3 x 2.5 slab.
© Tom Loomis / Dakota Matrix

Bromellite: BeO  
Magnesioferrite: MgFe+++2O4

Comments: A micro, water color, hexagonal or barrel shaped crystal of white bromellite to about 0.3 mm on yellowish calcite with associated black magnesioferrite.
Location: Langban, Varmland, Sweden. Scale: 18x9x10mm.
© Tom Loomis / Dakota Matrix