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Gabbroid

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A field term for coarse-grained crystalline rocks with <90% mafics, and calcic plagioclase dominant.


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Classification of GabbroidHide

Sub-divisions of GabbroidHide

Mineralogy of GabbroidHide

Essential minerals - these are minerals that are required within the classification of this rock:
Calcic plagioclaseA petrological term for plagioclase series feldspars dominant in calcium.
MaficsA petrological term for dark, rock-forming minerals rich in magnesium and/or iron.
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 ...
Mica > BiotiteA series or subgroup of the Mica Group.

Synonyms of GabbroidHide

Other Language Names for GabbroidHide

Internet Links for GabbroidHide

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