mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

Mansfieldite with Smolianinovite

#35284

Mansfieldite with Smolianinovite

#35284
Availability
Sold
Size
6 x 4 x 1.5 cm - Sm Cabinet 
Formula
AlAsO4·2H2O (RRUFF)
Locality
Mt. Cobalt mine, Mt Isa, Queensland, Australia
Tagged
arsenate

Tiny purple rosettes and clusters of cobaltoan Mansfieldite covering the face with Smolianinovite as tan sprays and crusts. Excellent colorful arsenate which is usually colorless but in this case is colored by the imurities of cobalt.

Mansfieldite

Formula
AlAsO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Spherical, Encrustations 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
white, light gray, reddish gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5-4 

Data courtesy of Webmineral.

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2020 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map