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  

Hydrohetaerolite

#DP39655

Hydrohetaerolite

#DP39655
Availability
Sold
Size
3.5 x 3 x 2 cm - Miniature 
Formula
Zn2Mn3+4O8·H2O (RRUFF)
Locality
Precaución mine, Cartagena, Murcia, Spain

I don't see this locality on the market too often if at all. This is a limonitic matrix specimen with pockets filled with black, shiny Hydrohetaerolite and colorless Calcite. The Calcite has overgrown the Hydrohetaerolite but only in places.

Hydrohetaerolite

Formula
Zn2Mn3+4O8·H2
Crystal System
Tetragonal 
Crystal Habit
Radial, Botryoidal, Massive 
Cleavage
Good, None, None 
Luster
Sub Metallic 
Color
brownish black, dark brown 
Streak
dark brown 
Class
Tetragonal - Ditetragonal Dipyramidal 
Hardness
5-6 

Data courtesy of Webmineral.

Collection
Polak Collection

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2025 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map