John Attard's Image Gallery

Bustamite: (Mn,Ca)3Si3O9

Comments: Very course crystals of brownish red bustamite to 3cm in pink calcite.
Location: Zinc Corp mine, Broken Hill, NSW, Australia. Scale: 7 cm.
© John Attard

Bustamite: (Mn,Ca)3Si3O9

Comments: Very course crystals of brownish red bustamite to 3cm in pink calcite.
Location: Zinc Corp mine, Broken Hill, NSW, Australia. Scale: 7 cm.
© John Attard

Gyrolite: NaCa16Si23AlO60(OH)8·64(H2O)

Comments: Two round beige gyrolite aggregates each about 5cm diameter.
Location: Bombay, India. Scale: Specimen size 10cm.
© John Attard

Gyrolite: NaCa16Si23AlO60(OH)8·64(H2O)

Comments: Two round beige gyrolite aggregates each about 5cm diameter.
Location: Bombay, India. Scale: Specimen size 10cm.
© John Attard

Heterogenite-2H: Co+++O(OH)

Comments: Shiny black botryoidal heterogenite-2H.
Location: Star of the Congo mine, Katanga, Congo. Scale: 6 cm.
© John Attard

Heterogenite-2H: Co+++O(OH)

Comments: Shiny black botryoidal heterogenite-2H.
Location: Star of the Congo mine, Katanga, Congo. Scale: 6 cm.
© John Attard

Hubnerite: MnWO4

Comments: Sharp, dark tabular crystals of hübnerite with pyrite.
Location: Cavnic, Romania. Scale: Crystal size 2 cm.
© John Attard

Hubnerite: MnWO4

Comments: Sharp, dark tabular crystals of hübnerite with pyrite.
Location: Cavnic, Romania. Scale: Crystal size 2 cm.
© John Attard

Lueshite: NaNbO3

Comments: Opaque, brownish, pseudo-cubic crystals of lueshite.
Location: Republic of Congo. Scale: Crystal size 8 mm.
© John Attard

Lueshite: NaNbO3

Comments: Opaque, brownish, pseudo-cubic crystals of lueshite.
Location: Republic of Congo. Scale: Crystal size 8 mm.
© John Attard

Magnesioriebeckite: [ ]Na2[(Mg,Fe++)3Fe+++2]Si8O22(OH)2

Comments: Crystal of magnesioriebeckite showing massive and asbestosform habits.
Location: Cochabamba Dept, Bolivia. Scale: 2.5 cm.
© John Attard

Magnesioriebeckite: [ ]Na2[(Mg,Fe++)3Fe+++2]Si8O22(OH)2

Comments: Crystal of magnesioriebeckite showing massive and asbestosform habits.
Location: Cochabamba Dept, Bolivia. Scale: 2.5 cm.
© John Attard

Realgar: AsS

Comments: Sharp, dark red crystals of realgar to 2 cm on calcite.
Location: Hunan Province, Chin. Scale: Crystal size 2 cm.
© John Attard

Realgar: AsS

Comments: Sharp, dark red crystals of realgar to 2 cm on calcite.
Location: Hunan Province, Chin. Scale: Crystal size 2 cm.
© John Attard

Salammoniac: NH4Cl

Comments: Network of white or slightly grayish sal-ammoniac crystals with some sulfur.
Location: Ravat, Tien Shan Mtns, Central Tajikistan. Scale: 6 x 4 x 3 cm.
© John Attard

Salammoniac: NH4Cl

Comments: Network of white or slightly grayish sal-ammoniac crystals with some sulfur.
Location: Ravat, Tien Shan Mtns, Central Tajikistan. Scale: 6 x 4 x 3 cm.
© John Attard

Stannite: Cu2FeSnS4  
Volfsonite: Cu+10Cu++Fe++Fe+++2Sn++++3S16

Comments: Stannite crystal cluster at the base of a quartz crystal. Volfsonite is now consideres stannite.
Location: Yaogangxian mine, Hunan, China. Scale: Crystal size 3 cm.
© John Attard

Stannite: Cu2FeSnS4  
Volfsonite: Cu+10Cu++Fe++Fe+++2Sn++++3S16

Comments: Stannite crystal cluster at the base of a quartz crystal. Volfsonite is now consideres stannite.
Location: Yaogangxian mine, Hunan, China. Scale: Crystal size 3 cm.
© John Attard

Valentinite: Sb2O3

Comments: 6mm spray of bladed valentinite crystals on siderite matrix.
Location: Potosi, Bolivia. Scale: Picture size 1.5 cm.
© John Attard

Valentinite: Sb2O3

Comments: 6mm spray of bladed valentinite crystals on siderite matrix.
Location: Potosi, Bolivia. Scale: Picture size 1.5 cm.
© John Attard