Allanite-Epidote

Properties

Formula (Ca,REE)2(Al2FeII)[Si2O7][SiO4]O(OH)
Abbreviation Aln-Ep
Classification Epidote
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Monoclinic, Point group 2/m, Space group P21/m (#11)
Tags Hydroxide, Variety , Aluminosilicate

Composition

Element Atoms
Ca 1
H 1
Si 3
Fe 1
Al 2
O 13
REE 1
Total: 22