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  

Calumetite

#RS58605

Calumetite

#RS58605
Availability
Sold
Size
3 x 2 x 1.4 cm - Thumbnail 
Formula
Cu(OH)2·2H2O (RRUFF)
Locality
Centennial mine, Houghton Co. Michigan, United States
Tagged
copper

Sky blue masses of rare Calumetite with Epidote and native Copper. Rich.

Type Locality

Calumetite

Formula
Cu(OH)2·2H2
Crystal System
Orthorhombic 
Crystal Habit
Spherical, Wheat Sheaf, Scaly 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
azure blue, powder blue, bluish white 
Streak
blue 
Class
Orthorhombic 
Fracture
Brittle 
Hardness

Data courtesy of Webmineral.

Collection
RC Stamberg Collection
Special Info
Type Locality

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2022 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map