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Apotroctolite

A rock subtype
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A term used for a coarse-grained rock consisting essentially of alkali feldspar and olivine, with minor pyroxene, biotite and chlorite.


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Unique IdentifiersHide

Mindat ID:
50491
Long-form identifier:
mindat:1:1:50491:9

Classification of ApotroctoliteHide

Mineralogy of ApotroctoliteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
OlivineM2SiO4
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
ChloriteA name commonly used for undifferentiated members of the chlorite group.
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
PyroxeneADSi2O6

Internet Links for ApotroctoliteHide

References for ApotroctoliteHide

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