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Schorl

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NST614461

Schorl

Classic Locality

Description Tabs

Description
Locality: 
Sonnenberg, St Andreasberg District, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 2.4 × 1.6 cm
Largest Crystal: 
0.60cm
Description

A specimen of schorl crystals, some as double terminated crystals with perfectly developed faces others as fragments, from a pegmatitic granit located on the south-east slope of Sonnenberg mountain, about 5 km north of famous St. Andreasberg. Sonnenberg is an important german schorl locality. This specific one is an excellent example for the locality.

Mineral Data
What's on the rock

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0