Boracite

Image

Dodecahedron of boracite, from the type locality at Lüneburg Kalkberg, Lower Saxony, Germany. Size: 1.2 x 1.1 x 0.9 cm

© Rob Lavinsky, iRocks.com – CC-BY-SA-3.0

Properties

Formula Mg3B7O13Cl
Abbreviation Boc
Classification Boracite (group)
Luminescence emitter O
IMA Status Grandfathered (pre-IMA), 1789
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Related materials Trembathite
Crystal symmetry Orthorhombic, Point group mm2, Space group Pca21 (#29)
Tags Halide , Mineral, Borate

Composition

Element Atoms
Cl 1
O 13
Mg 3
B 7
Total: 24

Reference

Reference Lines Spectra Images
Gaft et al. 1979 1 0 0