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Petalite With Elbaite Var Indicolite

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LGM668829

Petalite With Elbaite Var Indicolite

Ex Dr. Krantz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
Utö Island, Haninge, Stockholm County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
5.5 × 9.5 × 5 cm
Weight: 
375.00gr
Description

White to cream-colored, crystalline petalite from the type locality 'Utö island, Södermanland, Sweden'. First described in 1800, from the Greek "petalon" for leaf, in allusion to the perfect basal cleavage, which is apparently visible. This is a rare, unusual large petalite specimen, accompanied by uncommon blue tourmaline var indicolite - one of the best Utö island petalites I have ever offered on e-rocks.

Comes with old label. Although the bottom was cut off, it is very likely from the Freiberg Mining Academy Mineral Dealership, with handwriting of Otto Felix Edelmann, who was Administrator from 1920 to 1952.

Mineral Data
What's on the rock

Petalite

Formula: 
LiAl(Si4O10)
Strunz: 
9.EF.05
Crystal System: 
Monoclinic
Hardness: 
6.5
Streak: 
White
Type Locality: 
Utö Mines, Utö, Södermanland, Sweden

Elbaite

Formula: 
Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.5
Streak: 
White
Type Locality: 
Fonte del Prete, San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy...

Indicolite

Variety Of: 

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Hardness: 
7
Hardness: 
0.0

Seller Information

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Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

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I will happily do all in my power to resolve the situation to your satisfaction.

+++IMPORTANT+++
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