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  

Ettringite

#PD62707

Ettringite

#PD62707
Availability
Available
Price
$40.00
Size
3 x 2 x 1.2 cm - Thumbnail 
Formula
Ca6Al2(SO4)3(OH)12·26H2O (RRUFF)
Locality
N'Chwaning mines, Kuruman, Northern Cape prov., South Africa

Brick red euhedral crystals to 1cm.

Ettringite

Formula
Ca6Al2(SO4)3(OH)12·26H2
Crystal System
Hexagonal 
Crystal Habit
Acicular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Hardness
2-2.5 

Data courtesy of Webmineral.

Collection
Don Phillips Collection

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2024 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map