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  

Manganite with Goethite/Quartz Iron fromation

#DH36799

Manganite with Goethite/Quartz Iron fromation

#DH36799
Availability
Sold
Size
15 x 11 x 9 cm - Cabinet 
Formula
Mn3+O(OH) (RRUFF)
Locality
South Jackson pit, Negaunee, Marquette iron range, Marquette Co., Michigan, United States

Elongated, bladed, lustrous Manganite crystals to over 1cm in Quartz vugs in Goethite-Quartz iron formation. The crystals of Manganite are excellent and well-formed. There are also bladed crystals of Baryte. It is a heavy specimen and will cost extra to ship.

Manganite

Formula
Mn3+O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Pseudo Orthorhombic, Massive - Fibrous, Prismatic 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
black, gray, grayish black 
Streak
dark brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness

Data courtesy of Webmineral.

Collection
Hess Collection
Mineralpedia
View Manganite
On Dakota Matrix
Previously Sold Manganite
On Dakota Matrix
Other Available Manganite
WebMineral
View Manganite
Mindat
View Manganite

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2019 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map