Skip to content
Mineralati

Minerals

Greifensteinite

greifensteinite

Greifensteinite: Mineral information, data and localities.

Greifensteinite: Mineral information, data and localities. — via www.mindat.org · Source

Overview

Greifensteinite is beryllium phosphate mineral with formula: Ca2Fe2+5Be4(PO4)6(OH)4·6H2O. It is the Fe2+ dominant member of the roscherite group. It crystallizes in the monoclinic crystal system and typically forms prismatic dark olive green crystals. It was first described in Germany at Greifenstein Rocks, Ehrenfriedersdorf, and was named for the location. At the type locality, it occurs within a lithium-rich pegmatite in miarolitic cavities. It was approved by the International Mineralogical Association in 2002.

Identification characteristics

  • Mohs hardness 4.5

Scientific references

  1. Greifensteinite — Wikidata. https://www.wikidata.org/wiki/Q3776582 Link
  2. Greifensteinite — Wikipedia. https://en.wikipedia.org/wiki/Greifensteinite Link