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  

Pyrolusite with Psilomelane

#PD31034

Pyrolusite with Psilomelane

#PD31034
Availability
Sold
Size
5 x 4.5 x 3.5 cm - Miniature 
Formula
MnO2 (RRUFF)
Locality
Minas Gerais, Brazil

Excellent example of rosettes like, platy crystals of golden metallic crystals of Pyrolusite with black Psilomelane crust.

Pyrolusite

Formula
MnO2 
Crystal System
Tetragonal 
Crystal Habit
Reniform, Dendritic, Earthy 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
steel gray, iron gray, bluish gray 
Streak
black 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Brittle 
Hardness
6-6.5 

Data courtesy of Webmineral.

Collection
Phillips Collection

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