Chromium-dravite

Properties

Formula NaMg3Cr6(Si6O18)(BO3)3(OH)3(OH)
Abbreviation Cdrv
Classification Tourmaline
IMA Status Approved/redefined (IMA 1982-055)
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Hydroxide , Mineral, Silicate , Borate

Composition

Element Atoms
H 4
B 3
O 31
Na 1
Mg 3
Si 6
Cr 6
Total: 54