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Augen Gneiss

Metaquartzite - Anglesey

£1.73 – £3.68 ex VAT

Migmatite

£3.68 – £10.35 ex VAT

£1.15 – £3.46 ex VAT

Augen Gneiss is a foliated metamorphic rock with large crystals of lenticular or eliptical shear bound microcline.

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Augen gneiss, from the German: Augen meaning “eyes”, is a coarse-grained gneiss resulting from metamorphism of granite, which contains characteristic elliptic or lenticular shear-bound feldspar porphyroclasts, normally microcline, within the layering of the quartz, biotite and magnetite bands. Specimens are supplied in labelled card trays.

Weight 130 g
Specimen Size

2"x 2", 3" x 2", 4" x 3"

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