Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Arsenocrandallite & Segnitite

Views:
Watches:
JYJ644875

Arsenocrandallite & Segnitite

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.3 × 1.7 cm
Description

Yellowish arsenocrandallite (Raman confirmed dussertite group)  with segnitite and olivenite.

 

 

Mineral Data
What's on the rock

Arsenocrandallite

Formula: 
CaAl3(AsO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
5.5
Streak: 
white
Type Locality: 
Neubulach, Calw, Black Forest, Baden-Württemberg, Germany

Segnitite

Formula: 
PbFe3+3(AsO4)2(OH,H2O)6
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
4.0
Type Locality: 
Kintore opencut, Broken Hill, Yancowinna Co., New South Wales, Australia