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Pyrochlore With Apatite Augite & Sanidine

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LGM181022

Pyrochlore With Apatite Augite & Sanidine

Ex Dr. Krantz, Bonn, Germany
With Antique Label

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Description Tabs

Description
Locality: 
Laacher See, Glees, Rhineland-Palatinate, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
8 × 10 × 5.5 cm
Description

Yellow apatite needles, light pink pyrochlore octahedrons and black augite crystals embedded in a lawn of white sanidine. Azor-Pyrrhite is an old synonym for pyrochlore (group). A typical eifel volcanism ejection block with a nice paragenesis and old Dr. Krantz label dated before World War II. Weight: 290 grams

Mineral Data
What's on the rock

Pyrochlore

Synonym Of: 

Pyrochlore Group

Formula: 
A2Nb2(O,OH)6Z
Strunz: 
4
Hardness: 
5 - 5.5
Group Parent: 
Pyrochlore Group

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

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Sanidine

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic - Prismatic
Hardness: 
6.0
Streak: 
White
Type Locality: 
Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany

Seller Information

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