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Apatite Var Osteolith

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LGM825612

Apatite Var Osteolith

Ex Heidelberger Mineralien Comptoir
With Antique Label

Description Tabs

Description
Locality: 
Hesse, Germany
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 5 × 1.4 cm
Weight: 
35.00gr
Description

A piece of so-called 'osteolith', an impure white, earthy variety of apatite which is softer than common apatite.
An interesting historic locality specimen - definition in Pierer's Universal-Lexikon, Band 12. Altenburg 1861, S. 408:
1) mineral, variety of apatite, is earthy, found in thin sheets of white color; Hardness 3 to 4, specific gravity 3; can be found in Ostheim in Hesse in dolerite, in Friedland in layers between basalt. 2) fossilized bones.

Comes with beautiful antique label of The Heidelberger 'Mineralien-Comptoir'. It was one of the earliest mineral dealerships in Europe, tracing its roots back to 1804 when a 25-year-old tax inspector (Steuerassessor) named Karl von Leonhard began occasionally dealing in minerals. Leonhard eventually became a prominent name among the mineralogists of Europe, having founded an important professional journal (which still exists) and published numerous books and articles. His mineral business grew in importance as well, and in time he passed on the management of the dealership to a succession of eager young men. The business ultimately operated for over 125 years, and during its heyday it was one of the leading such enterprises in the world, with a stock of over 40,000 specimens.

Mineral Data
What's on the rock

Apatite

Synonym Of: 

Chlorapatite

Formula: 
Ca5(PO4)3Cl
Strunz: 
8.BN.05
Hardness: 
5.0

Fluorapatite

Formula: 
Ca2Ca3(PO4)3F
Strunz: 
8.BN.05
Hardness: 
5.0

Hydroxylapatite

Formula: 
Ca5(PO4)3(OH)
Strunz: 
8.BN.05
Hardness: 
5.0
Crystal System: 
Hexagonal
Hardness: 
5

Osteolith

Variety Of: 

Apatite

Hardness: 
5
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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