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Foid-bearing gabbroic-rock

A rock subtype
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A gabbroic-rock containing foid minerals.


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Unique IdentifiersHide

Mindat ID:
48317
Long-form identifier:
mindat:1:1:48317:5
GUID
(UUID V4):
93559f12-d825-481d-bcaa-5f3683ce7ad1

Classification of Foid-bearing gabbroic-rockHide

QAPF_P_9-,10-.png

These rocks are in section 9' or 10' of the QAPF diagram.

Sub-divisions of Foid-bearing gabbroic-rockHide

Mineralogy of Foid-bearing gabbroic-rockHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FeldspathoidA family of rock-forming minerals consisting of aluminosilicates of sodium, potassium, or calcium and having too ...
Mafic mineralsA 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 > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2

Internet Links for Foid-bearing gabbroic-rockHide

References for Foid-bearing gabbroic-rockHide

Reference List:
 
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