Dravite

Facts

Chemical formula

NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃OH

Crystal system

Trigonal

Mohs hardness

7.0

Elements in formula

Sodium, Magnesium, Aluminium, Silicon, Oxygen, Boron, Hydrogen

Number of elements

7

IMA status

Grandfathered

Named after

Drava

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q2482759