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Johnbaumite & Calcite

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CSW135515

Johnbaumite & Calcite

Fluorescent

Description Tabs

Description
Locality: 
Nordmark, Filipstad, Värmland County, Sweden
Size Range: 
Small cabinet (7-10 cm)
Size: 
6 × 7.3 × 3.3 cm
Description

A calcite rich matrix with areas of the rare arsenate mineral, johnbaumite. Under short wave UV light the johnbaumite produces a nice light violet colour and the calcite produces a red orange colour.

Mineral Data
What's on the rock

Johnbaumite

Formula: 
Ca5(AsO4)3OH
Strunz: 
8.BN.05
Hardness: 
4.5
Streak: 
White
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Seller Information

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Seller's terms and conditions

Thank you for viewing my auctions. It goes without saying that maintaining high standards in both specimen quality and customer service are extremely important to me. If for any reason you are not happy with any aspect of your transaction then please let me know as soon as possible, ideally within 1 week of receiving your specimen. I will happily do all in my power to resolve the situation to your satisfaction. If your specimen is damaged upon delivery simply send me some photos to verify this and I'll provide you with a full refund or a replacement specimen, whichever you prefer.