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Willemite Franklinite Sphalerite & Cleiophane

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BSM610630

Willemite Franklinite Sphalerite & Cleiophane

ex Peter Tye Collection #T552A
Fluorescent

Description Tabs

Description
Locality: 
Franklin, Sussex County, New Jersey, United States of America
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.3 × 4.9 × 2.3 cm
Description

An intergrown mix of red willemite, black franklinite and a vein of pinkish cream sphalerite with cleiophane.

Under short wave UVL the willemite fluoresces strongly green while the sphalerite and cleiophane show weak pinkish-orange fluorescence. There is a very small patch of calcite showing red.

Under long-wave UVL the sphalerite shows a strong orange with cleiophane clearly visible as blue dots, streaks and patches.

 

Previous labels supplied (not photographed)
Mineral Data
What's on the rock

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

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Cleiophane

Variety Of: 

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Hardness: 
3.5 - 4.0
Formula: 
ZnS
Hardness: 
0.0
Type Locality: 
Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions
1. the successful bidding price is the price that will appear on your invoice. 2.Goods will be sent first class post within the UK and by small packet air mail to the US. Delivery will normally be within 7 days of despatch. Postage will be charged at cost and will be included on your invoice. 3. there are no additional charges for VAT or any other taxes. 4. insurance can be arranged, if requested, and will be charged as part of the shipping costs. 5. Goods will only be despatched on receipt of payment. For methods of payment please see "Payment Types" 6. We aim to give complete satisfaction at all times. Goods are supplied on 14 days approval. If you are not satisfied with your purchase and the goods are returned undamaged within that time we promise to refund the full value of the item(s) returned, excluding any postage incurred in the transaction. 7. Broadstone Minerals operates a Privacy policy. We do not disclose buyer's information to third parties. Cookies are used to keep track of the contents of your shopping trolley once you have selected an item, to store delivery addresses if the address book is used and to store your details if you select the "remember me " option.
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