Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Hollandite

Views:
Watches:
JYJ776504

Hollandite

EDS confirmed specimen no 20-04-04-cla21

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1 × 0.5 cm
Description

EDS confirmed specimen no 20-04-04-cla21 hosting black hollandite needles with brown goethite on matrix. EDS analysis attached. 

Mineral Data
What's on the rock

Hollandite

Formula: 
Ba(Mn4+6Mn3+2)O16
Strunz: 
4.DK.05a
Hardness: 
4.0 - 6.0
Streak: 
Black
Type Locality: 
Gowari Wadhona Mine, Chhindwara District (Chindawara District; Chindwara District), Jabalpur Division, Madhya Pradesh, India