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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Bekinkinite

A rock subtype
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A melanocratic variety of theralite consisting of abundant brown amphibole and lesser titanian augite with minor olivine, nepheline, labradorite and alkali feldspar.


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Unique IdentifiersHide

Mindat ID:
50825
Long-form identifier:
mindat:1:1:50825:2

Classification of BekinkiniteHide

QAPF_P_14.png

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

Mineralogy of BekinkiniteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Amphibole(Na, K, ◻)(Ca,Na)2(Mg,Fe,Al)5((Si,Al)8O22)(OH,F,Cl,O)2
Feldspar > Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
Feldspar > Plagioclase > Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Feldspathoid > NephelineNa3K(Al4Si4O16)
OlivineM2SiO4
Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6

Internet Links for BekinkiniteHide

References for BekinkiniteHide

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