Apatite

UNB-2018-0002Minerals » Phosphates

Description

Sample of several transparent green prismatic euhedral Apatite crystals embedded into the substrate. Vitreous lustre. Largest Apatite crystal size: 1.6 cm x 1.0 cm x 1.0 cm. Apatite (Ca5(PO4)3(F,Cl,OH) can be green, brown, red, yellow, violet, pink, white or colourless. Lustre is greasy or vitreous and streak is white. Hardness is 5 and cleavage is poor in one direction crosswise. Apatite usually occurs as long or short prismatic crystals but can also be tabular, massive, coarse granular to compact, stalactitic, earthy or oolitic in form.

Specifications

Object nameApatite
IDUNB-2018-0002
Legal statusPermanent collection
CategoryMineral
Classification
Mineral group:
Phosphates
Composition
  • PO₄³⁻
OriginMexico
Pieces1
PartialNo
Measurements
  • 4.2cm x 5.6cm x 3.6cm

Map of Origin

Publications

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