owl  

ATHENA

MINERALOGY

mlevy

Mineral:DRAVITE
Formula:NaMg3Al6(Si6O18)(BO3)3(OH)3OH
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:8/E.19-20
Group:Tourmaline group Alkali subgroup
References:HB2/1 (1995); AM 96 (2011), 895; L 10 (2015), 8
Type Locality:Dobrava pri Dravogradu, Slovenia (formerly Unterdrauburg, Drave, Kärnten (Carinthia), Austria)

mlevy

[Mineral Search]     [Abbreviations]     [Pictures]     [Athena]

mlevy

Send comments on page to mail pp

Copyright © 1986, 1994, 2018 ATHENA - Pierre Perroud. All Rights Reserved.