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Manganoan Calcite On Hausmannite

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SMS1040886

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Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.6 × 3.5 × 3.1 cm
Weight: 
17.33gr
Description

The specimen has an intergrown formation of botryoidal manganoan calcite as well as small scalene crystals of calcite on black metallic hausmannite. Very light pink rounded forms of calcite have formed a continuous growth across the matrix surface. The hausmannite have a very simple metallic black lustrous pyramid forms.

Mineral Data
What's on the rock

Manganoan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Mn)CO3
Hardness: 
0.0

Hausmannite

Formula: 
Mn2+Mn3+2O4
Strunz: 
4.BB.10
Hardness: 
5.5
Type Locality: 
Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany

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Postage Area Price
Europe up to 500 grams
$12
Europe up to 1 kilogram
$16
United States up to 500 grams
$14
United States up to 1 kilogram
$18
Rest of world up to 500 grams
$14
Rest of world up to 1 kilogram
$18
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Combined Shipping: We do offer combined shipping. The cost is $4 added to the shipping cost per additional 500 grams. Please note that the packaging weight also needs to be taken into account. The average packaging weight is 150 grams to 300 grams for larger parcels.

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