Mineralpedia Details for Adamsite-(Y)
Adamsite-(Y)
Named for Professor Frank Dawson Adams of McGill University in Montreal, Canada, who was a geologist and petrologist who studied the Monteregian Hills, one of which is Mont Saint-Hilaire where the mineral finds its type locality at the Poudrette quarry. There are only two other localities for Adamisite-Y at Hundholmen in Nordland, Norway, and at the Shomiokitovoe pegmatite in the Lovozero massif on the Kola Peninsula in Russia. Adamsite-Y should not be confused by name with Adamsite, which is a variety of muscovite. Snow white fibrous crystals. A rare late-stage, low-temperature hydrothermal mineral in an alkalic pegmatite dike associated with an intrusive alkalic gabbro-syenite complex.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/adamsite-(Y).pdf
- Formula
- NaY(CO3)2ยท6H2O
- Crystal System
- Triclinic
- Crystal Habit
- Spherical, Radial, Aggregates
- Cleavage
- Perfect, Good, Good
- Luster
- Vitreous - Pearly
- Color
- colorless, white, pale pink, pale purple
- Streak
- white
- Class
- Triclinic - Pinacoidal
- Fracture
- Brittle
- Hardness
- 3
- WebMineral
- View Adamsite-(Y)
- Mindat
- View Adamsite-(Y)
Adamsite-(Y) from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
Snow white fibrous crystals to 3mm.
Adamsite-(Y) from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
- Special Info
- Type Locality
White prismatic crystals in a 4mm spray.
