Beegerite

A poorly characterised mineral, discredited in 2006 for being a mixture of “schirmerite” and matildite (Burke, 2006). Originally reported from Baltic Lode, Grant, Park Co., Colorado, USA.

History

Activities related to discovery and approval of the group members

Chemical context

Stoichiometric formulas

Beegerite
mindat.org
  • March 13, 2023Pb6Bi2S9

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • light
  • dark gray
Color noteOriginal color note from the source
Light to dark gray
Lustre
Metallic