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Holdawayite

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SKY853024

Holdawayite

Type Locality

Description Tabs

Description
Locality: 
Kombat Mine, Grootfontein, Otjozondjupa Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.9 × 0.7 × 0.5 cm
Description

Outstanding brown crystals of the extrememely rare Mn mineral holdawayite from the type locality in Kombat mine, Namibia.

Originally, holdawayite is light to bright pink but it gradually changes to a brown color on exposure and in some cases has developed a thin black sooty coating that masks the true color (source Mindat).

Only 3 known localities worldwide.

First time this mineral is auctioned in the site !

Ex Vandenbroucke Museum collection from Waregem, Belgium.

No duplicates available

Mineral Data
What's on the rock

Holdawayite

Formula: 
Mn6(CO3)2(OH)7(Cl,OH)
Strunz: 
5.BA.20
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Kombat Mine (Klein Otavi; Asis), Kombat, Grootfontein District, Otjozondjupa Region, Namibia

Seller Information

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