Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
cubiccommonHalides
Fluorite
CaF₂
This image features a cluster of deep purple, translucent fluorite crystals, exhibiting well-formed cubic habits, some showing twinning.
Fluorite Physical Properties
Mohs Hardness
4Crystal System
cubicLuster
vitreousStreak Color
whiteCleavage
perfect octahedral in four directionsFracture
unevenSpecific Gravity
3.18Colors
purple, green, blue, yellow, colorless, pink, brownTransparency
transparentType Locality
Yaogangxian Mine, Yizhang County, Chenzhou Prefecture, Hunan Province, ChinaMineral Group
HalidesUses
flux in steelmaking, hydrofluoric acid production, optical lenses, jewelry, collectorAssociated Minerals
quartz, calcite, barite, galena, sphaleriteRarity
commonGeological Context
Fluorite typically forms in hydrothermal veins, often associated with metallic ore deposits, and can also be found in granites, pegmatites, and some sedimentary rocks.
