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Quartz porphyry

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Quartz-phyric porphyry. A field term for a medium-grained porphyritic igneous rock of felsic but unspecified composition occurring normally as minor stock or dike intrusions, and carrying prominent phenocrysts of quartz. It is a common altered host rock to porphyry copper deposits.

Synonym of: quartz felsite


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Classification of Quartz porphyryHide

Sub-divisions of Quartz porphyryHide

Mineralogy of Quartz porphyryHide

Essential minerals - these are minerals that are required within the classification of this rock:
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > HornblendeAn informal name for dark green to black amphiboles, mostly ferro-hornblende or ...
FeldsparA petrological term for Feldspar Group.
Mica > BiotiteA series or subgroup of the Mica Group.

Internet Links for Quartz porphyryHide

Mineral and/or Locality  
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