











Mineralpedia Details for Shomiokite-(Y)
Shomiokite-(Y)

Named for the Shomik River near the type locality at the Lovozero massif in the Kola Peninsula, Russia. In only two localities worldwide, the type locality and at Mont Saint-Hilaire in Canada, Shomiokite occurs as segregations and in intersections in potassic feldspar pegmatites, and also in intrusive alkalic gabbro-syenite.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/shomiokite-(Y).pdf
- Formula
- Na3Y(CO3)3ยท3H2O
- Crystal System
- Orthorhombic
- Cleavage
- Perfect, None, None
- Luster
- Earthy (Dull)
- Color
- colorless
- Streak
- white
- Class
- Orthorhombic - Pyramidal
- Hardness
- 2-3
- WebMineral
- View Shomiokite-(Y)
- Mindat
- View Shomiokite-(Y)
Shomiokite-(Y) from Umbozero mine, Alluaiv Mt, Lovozero Massif, Kola Peninsula, Russia

Long striated clear crystals to 2.3cm.