Formula: Na3(Y,Dy)(CO3)3·3H2O
Mineral class: carbonates Crystal system: orthorhombic Mohs scale: 2 - 3 Density (g/cm3): 2.52 Refractive index: 1.528 - 1.531 Cleavage: perfect Colors: colorless, light yellow, pink Transparency: translucent, small crystals sometimes transparent Luster: waxy - silky Fluorescence: - Pleochroism: - Largest crystal: ? Deposits: Shomiokitovoe Pegmatite / Umbozero Mine / Mt. Alluaiv / Lovozero Massif / Kola Peninsula / Murmanskaja Oblast' / Russia, Poudrette Quarry / Mont Saint-Hilaire / Rouville County / Quebec / Canada Discovery: 1990? 1st Description: 1992 (Khomyakov, Shumyatskaya, Polezhaeva) Name: from the deposit at the Shomiok River / Lovozero Massif / Kola Peninsula / Russia |
Shomiokite-(Y) Mineral
Image width: 0.6 cm Origin: Poudrette Quarry / Mount Saint-Hilaire / Rouville County / Québec / Canada Photo by kind permission of © Stephan Wolfsried |
Shomiokite-(Y) Mineral
Size: appr. 3 cm Origin: Shomiokitovoe Pegmatite / Umbozero Mine / Mt. Alluaiv / Lovozero Massif / Kola Peninsula / Murmanskaja Oblast' / Russia Photo by kind permission of © Pavel Kartashov |
Shomiokite-(Y)
Size: 0.33 x 0.77 cm Weight: 0.46 ct Origin: Shomiokitovoe Pegmatite / Umbozero Mine / Mt. Alluaiv / Lovozero Massif / Kola Peninsula / Murmanskaja Oblast' / Russia Photo by kind permission of © www.rocklogic.biz |