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Alsbachite

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A local name for a porphyritic dyke rock containing phenocrysts of quartz, feldspar and garnet in a fine-grained groundmass of quartz, feldspar and colourless mica.


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Classification of AlsbachiteHide

Mineralogy of AlsbachiteHide

Essential minerals - these are minerals that are required within the classification of this rock:
FeldsparA petrological term for Feldspar Group.
Garnet GroupX3Z2(SiO4)3
MicaA petrological term for Mica Group.
Silica > QuartzSiO2

References for AlsbachiteHide

Reference List:
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Le Maitre (ed.) (2002) Igneous Rocks - A Classification and Glossary of Terms. Cambridge Press

Internet Links for AlsbachiteHide

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