Schorl

Properties

Formula NaFeII3Al6(Si6O18)(BO3)3(OH)3(OH)
Abbreviation Srl
Classification Tourmaline
IMA Status Approved/renamed (IMA 2007 s.p.)
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Trigonal, Point group 3m, Space group R3m (#160)
Tags Borate , Hydroxide , Mineral, Aluminosilicate

Composition

Element Atoms
H 4
Fe 3
B 3
O 31
Na 1
Si 6
Al 6
Total: 54