Mineralpedia Details for Metauranocircite
Metauranocircite
Named as a mineral relating to uranocircite with lower hydration, hence the prefix meta-, Metauranocircite is a dehydrated form of Uranocircite, which in turn is named for its uranium content and the Greek ford for “falcon” after its type locality at Falkenstein in Germany. Metauranocircite is usually a secondary mineral that occurs in oxidized uranium deposits and can occur as a primary mineral in low-temperature hydrothermal veins as vivid yellow-green, fluorescent, thin platy, flexble crystals from 1 to 3mm. Found in diverse geological environments with barium, uranium and phosphate components including coal deposits, hydrothermal, and alluvial.
Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)
Encyclopedia of Mineralogy, 1st edition Roberts & Rapp (1974).
Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/metauranocircite-I.pdf
- Formula
- Ba(UO2)2(PO4)2*6-8(H2O)
- Crystal System
- Monoclinic
- Crystal Habit
- Thin platy, rectungular, fan-like groups.
- Luster
- Pearly
- Color
- green
- Class
- Monoclinic - Sphenoidal
- Hardness
- 2-2.5
- WebMineral
- View Metauranocircite
- Mindat
- View Metauranocircite
Metauranocircite from Davier mine, Annie Creek, Lawrence Co., South Dakota, United States
- Special Info
- Radioactive and Fluorescent
Vivid yellow platy crystals from 2-4mm on dark Limonitic stained Rhyolite matrix.
