John Veevaert's Image Gallery

Mannardite: BaTi6V+++2O16·(H2O)

Comments: Prismatic crystals of black, metallic lustered mannardite crystals in matrix.
Location: Kechica River, British Columbia, Canada. Scale: 3.4 X 4.5 cm.
© John Veevaert

Marialite: Na4Al3Si9O24Cl

Comments: Fully terminated 4.3 cm crystal of marialite. Weakly fluorescent red under SW UV light.
Location: Gooderham, Haliburton Co., Ontario, Canada. Scale: 6 x 1.5 cm.
© John Veevaert

Marthozite: Cu[(UO2)3(SeO3)2O2]·8(H2O)

Comments: Yellowish green coating of marthozite on matrix.
Location: Musonoi Mine, Katanga, Democratic Republic of the Congo. Scale: Not Given.
© John Veevaert

Mckelveyite-(Y): NaCa(Ba,Sr)3(Y,REE)(CO3)6·3(H2O)

Comments: Vitreous, gray, mckelveyite crystals in matrix.
Location: Mt. Kukisvumchorr, Khibiny Massif, Kola Peninsula, Russia. Scale: Specimen Size 2.8 x 1.9 x 1.9 cm.
© John Veevaert

Melanterite: Fe++SO4·7(H2O)

Comments: Deep greenish blue encrustation of melanterite. The pistanite variety is copper-bearing where Cu replaces some of the Fe in the crystal structure.
Location: Patagonia District, Arizona, USA. Scale: 5 x 9.5 cm.
© John Veevaert

Meliphanite: (Ca,Na)2Be[(Si,Al)2O6(F,OH)]

Comments: Honey yellow, translucent sample of Meliphanite.
Location: Aroy, Langesundsfjorden, Norway. Scale: 3.6 X 5.3 cm.
© John Veevaert

Mellite: Al2[C6(COO)6]·16(H2O)

Comments: Specimen of crystalline mellite. Mellite is a naturally occurring organic mineral species.
Location: Csordakhut, Tatabanya, Hungary. Scale: 4 x 3 cm.
© John Veevaert

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

Comments: Vuggy matrix covered with yellow micro crystals of mendozavilite.
Location: Rustler mine, Tooele County, Utah, USA. Scale: Specimen size 1 cm.
© John Veevaert

Metaheinrichite: Ba(UO2)2(AsO4)2·8(H2O)

Comments: Siliceous jasperoid with a black crust of uraninite (?) and bright canary yellow crystals of metaheinrichite crystals to 2.5mm across.
Location: White King Mine, Lakeview, Oregon, USA. Scale: Picture size 2 cm.
© John Veevaert

Metahewettite: CaV6O16·3(H2O)

Comments: Deep red, vibrant, radial micro crystals of metahewettite to 3mm in diameter on matrix.
Location: Cactus Rat mine, Grand County, Utah. Scale: 4 x 4 x 2 cm.
© John Veevaert

Metauranocircite: Ba(UO2)2(PO4)2·6-8(H2O)  
Uranocircite: Ba(UO2)2(PO4)2·12(H2O)

Comments: Brilliant, fluorescent yellow green crystals of uranocircite altered to meta-uranocircite.
Location: Bergen, Vogtland, Saxony, Germany. Scale: 2.3 x 2.2 cm.
© John Veevaert

Metavivianite: (Fe++3-x,Fe+++x)(PO4)2(OH)x·8-x(H2O), x=0.5

Comments: Rust-brown, metavivianite var. kertschenite crystals to 1.5 cm in length.
Location: Kertsch Crimea, Ukraine. Scale: 5.5 x 3.5 cm.
© John Veevaert

Meyerhofferite: Ca2B6O6(OH)10·2(H2O)

Comments: Transparent, tabular crystals of meyerhofferite on matrix.
Location: 20-Mule Team Canyon, Death Valley, Inyo County, California, USA. Scale: Crystal size 1.5 cm.
© John Veevaert

Microlite: (Na,Ca)2Ta2O6(O,OH,F)

Comments: Golden-colored microlite octahedrons on white albite.
Location: Maxixe Mine, Itinga, Minas Gerais, Brazil. Scale: Crystal size .5 cm.
© John Veevaert

Mimetite: Pb5(AsO4)3Cl  
Duftite-alpha: PbCu(AsO4)(OH)

Comments: Mimetite crystals are replaced by Duftite-alpha on a gossanous matrix.
Location: Mt. Bonnie Mine, Northern Territory, Australia. Scale: Crystal size to 3mm.
© John Veevaert

Mimetite: Pb5(AsO4)3Cl

Comments: Crystals of tan colored Mimetite. The largest crystal is 1 cm across.
Location: Mt. Bonnie Mine, Northen Territory, Austalia. Scale: 2.9 x 1.7 cm.
© John Veevaert

Minrecordite: CaZn(CO3)2  
Dioptase: CuSiO2(OH)2

Comments: Blue-green dioptase covered with minute, rhombic crystals of transparent minrecordite one mm or less in size.
Location: Tsumeb Mine, Tsumeb, Namibia. Scale: Picture size 1 cm.
© John Veevaert

Minyulite: KAl2(PO4)2(OH,F)·4(H2O)

Comments: Crystals of minyulite on matrix.
Location: St. John's Quarry, Kapunda, South Australia. Scale: Crystal size 4-5 mm to 5 mm.
© John Veevaert

Miserite: K1.5-x(Ca, Y,REE)5[Si6O15][Si2O7](OH,F)2·yH2O

Comments: Silky crystalline inclusions of maroon-colored miserite with a dark amphibole and white feldspar.
Location: Hodza, Achkan, Kyrgyzstan. Scale: 4.9 x 3.9 cm.
© John Veevaert

Mixite: BiCu6(AsO4)3(OH)6·3(H2O)

Comments: Vuggy quartz matrix with green radial sprays of mixite crystals.
Location: Northern Star mine, Tintic district, Utah, USA. Scale: 6 x 5 x 4 cm.
© John Veevaert