Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Foid-bearing-gabbro

A rock classification type
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A gabbro containing up to 10% foid minerals.


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Unique IdentifiersHide

Mindat ID:
48267
Long-form identifier:
mindat:1:1:48267:1

Classification of Foid-bearing-gabbroHide

QAPF_P_10-.png

Foid-bearing-gabbro is in section 10' of the QAPF diagram.

Sub-divisions of Foid-bearing-gabbroHide

Mineralogy of Foid-bearing-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.
FeldspathoidA family of rock-forming minerals consisting of aluminosilicates of sodium, potassium, or calcium and having too ...
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Feldspathoid > Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Feldspathoid > NephelineNa3K(Al4Si4O16)
Feldspathoid > SodaliteNa4(Si3Al3)O12Cl

Internet Links for Foid-bearing-gabbroHide

References for Foid-bearing-gabbroHide

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