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Cancrinite-gabbro

A rock classification type
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A foid-gabbro where cancrinite is the most abundant foid.


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Unique IdentifiersHide

Mindat ID:
48373
Long-form identifier:
mindat:1:1:48373:1
GUID
(UUID V4):
1433b18d-093c-4e82-b3f9-502ef0b25a4f

Classification of Cancrinite-gabbroHide

QAPF_P_14.png

Foid-gabbro is in section 14 of the QAPF diagram.

Mineralogy of Cancrinite-gabbroHide

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.
Feldspathoid > Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
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 > HornblendeA commonly used informal name for dark green to black amphiboles, largely in the Hornblende Root Name ...
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Internet Links for Cancrinite-gabbroHide

References for Cancrinite-gabbroHide

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