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Cyprine Polyadelphite & Hendricksite

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MNT19346

Cyprine Polyadelphite & Hendricksite

Ex Southwest Scientific Company
Classic Locality

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Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 3 × 2.5 cm
Description

Bright blue mass of the cuprian vesuvianite variety cyprine with "polyadelphite", a synonym for Andradite garnet from Franklin and Manganophyllite (which is in fact hendricksite, Zn-analogue to phlogopite, type locality!).

With old label - also Ex Dr F Krantz, Bonn (Germany.)

Very interesting and very rare stuff

Mineral Data
What's on the rock

Cyprine

Variety Of: 

Vesuvianite

Formula: 
(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Strunz: 
9.BG.35
Hardness: 
6.5
Hardness: 
0.0
Streak: 
White
Type Locality: 
Øvstebø, Kleppan, Sauland, Hjartdal, Telemark, Norway

Polyadelphite

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Hardness: 
0.0

Hendricksite

Formula: 
K(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2
Strunz: 
9.EC.20
Hardness: 
0.0
Type Locality: 
Buckwheat pit (Southwest opening; Buckwheat Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

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Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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