Parisite-(Ce)
Mineral CaCe2(CO3)3F2
About it
Brownish-yellow, spindle-shaped, double-pointed crystals found in Colombia's Muzo emerald mines and in alkaline rocks. Named for J. J. Paris, who ran the Muzo mines; Mont Saint-Hilaire, Quebec, also gives crystals.
- Type
- Mineral
- Group
- Carbonate (with fluoride)
- Formula
- CaCe2(CO3)3F2
- Hardness (Mohs)
- 4.5
- Specific gravity
- 4.3–4.4
- Streak
- white
- Lustre
- vitreous (glassy), resinous, pearly
- Crystal system
- Monoclinic
- Colours
- brownish yellow, brown, yellow
- Transparency
- transparent, translucent
- Cleavage and fracture
- distinct basal
Typical values: real specimens vary. For more, see mindat.org.