Essexite-akerite
A rock subtype
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Unique Identifiers
Mindat ID:
51199
Long-form identifier:
mindat:1:1:51199:1
GUID
(UUID V4):
(UUID V4):
fb601624-a5f6-4691-a484-84cbe3adab4c
Classification of Essexite-akerite
Mineralogy of Essexite-akerite
Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali Feldspar | A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. |
Feldspar > Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Pyroxene | A petrological term for Pyroxene Group. |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present: