Earth Sciences
Collections

Blue Fluorite

UNB-2017-0189Minerals » Halides

Description

Sample of cluster of blue euhedral penetration twins/cubic crystals of Fluorite Fluorite (CaF2) can be violet, blue, green, yellow, brown, bluish black, pink, rose-red, white or colourless. Lustre is vitreous and streak is white. Hardness is 4 and cleavage is perfect in four directions forming an octahedrons. Fluorite usually occurs as cubes or penetration twins but can also be granular or columnar. Smallman Collection

Specifications

Object nameBlue Fluorite
IDUNB-2017-0189
Legal statusPermanent collection
CategoryMineral
Classification
Mineral group:
Halides
Composition
  • NaCl
  • CaF2
  • (Ce,La)F3·H2O
  • HNa4Be3Al(PO4)3F6
  • NaF
  • KCl
  • KCl and NaCl
  • NH4Cl
  • Na3AlF6
  • AgCl
  • KMgCl3•6H2O
  • Cu2Cl(OH)3
  • Hg2Cl2
OriginNamibia
Pieces1
PartialNo
Measurements
  • 3cm x 6cm x 4cm

Map of Origin

Publications

  • Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.