Schorl [ NaFeII3Al6(Si6O18)(BO3)3(OH)3(OH) ]

Material properties

Formula NaFeII3Al6(Si6O18)(BO3)3(OH)3(OH)
Abbreviation Srl
Classifications Minerals containing BO3, Tourmaline, Minerals containing OH
Luminescence emitter BO3
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
Na 1
Si 6
H 4
Fe 3
B 3
O 31
Al 6
Total: 54

Specimens of Schorl

Name Owner Materials Phase purity Image
MES003 Schorl CSIRO Schorl (100.0%) 100.0
M1357 Schorl / Muscovite CSIRO Gibbsite, Goethite, Muscovite-2M1, Quartz, Schorl (71.5%) 71.5
M2333 Schorl / Topaz / Quartz CSIRO Cassiterite, Goethite, Quartz, Schorl (63.1%), Topaz 63.1
M1366 Quartz / Schorl CSIRO Quartz, Schorl (42.9%) 42.9