#61

#61

Pbca

Example – Hambergite, Be2BO3(OH,F)

Named for Axel Hamberg (1863-1933), Swedish mineralogist and geographer.

Fluorine-hydroxyl variation in hambergite: A crystal-structure study
Locality: Himalaya mine, California, USA

Burns P C, Novak M, Hawthorne F C
The Canadian Mineralogist 33 (1995) 1205-1213

http://webmineral.com/data/Hambergite.shtml

CIF
http://rruff.geo.arizona.edu/AMS/download.php?id=05964.cif&down=cif

Hambergite

BeO/F4 tetrahedra (blue)
BO3 trigonal planar units (pink)

3D rotatable model of Be2BO3(OH,F)

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