Offretite

Facts

Chemical formula

KCaMg(Si₁₃Al₅)O₃₆·15H₂O

Crystal system

Hexagonal

Mohs hardness

4.0

Elements in formula

Potassium, Calcium, Magnesium, Silicon, Aluminium, Oxygen, Hydrogen

Number of elements

7

IMA status

Approved

Named after

Albert Offret

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3881055