Rikotite
A rock subtype
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A local name for a melanocratic banded variety of diorite composed mainly of clinopyroxene and anorthoclase with minor andesine, hornblende, biotite and opaques.
Unique Identifiers
Mindat ID:
48234
Long-form identifier:
mindat:1:1:48234:3
GUID
(UUID V4):
(UUID V4):
9953b54f-1736-41f0-84aa-76360e55e164
Classification of Rikotite
Diorite is in section 10 of the QAPF diagram.
Mineralogy of Rikotite
Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali Feldspar > Anorthoclase | (Na,K)AlSi3O8 |
Pyroxene > Clinopyroxene | A petrological term for Clinopyroxene Subgroup. |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > Hornblende | An informal name for dark green to black amphiboles, mostly ferro-hornblende or ... |
Feldspar > Plagioclase > Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
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 |
Internet Links for Rikotite
mindat.org URL:
https://www.mindat.org/min-48234.html
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