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Franklinite Willemite & Calcite

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TPX756967

Franklinite Willemite & Calcite

Fluorescent

Description Tabs

Description
Locality: 
Sterling Hill, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5.5 × 4.3 cm
Weight: 
161.00gr
Description

Spectacular and very aesthetic specimen of Franklinite, willemite calcite and minor zincite, the particularity that this specimen gives this beauty is that it has the power to acquire fluorescence under the action of short-wave ultraviolet light, as you can see in the latest Photos. Calcite is fluorescent in red and willemite is fluorescent in green, black franklinite and red zincite are not fluorescent.

Mineral Data
What's on the rock

Franklinite

Formula: 
Zn2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Colour: 
Black
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Willemite

Formula: 
Zn2SiO4
Strunz: 
9.AA.05
Hardness: 
5.5
Streak: 
White
Type Locality: 
Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium

Calcite

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

Current price

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18
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Start 15 Jul 18:00
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Shipping Information

Postage Area Price
Spain
8
Europe
12
USA
$19
Rest of world
18.50

Seller Information

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