Shonkinite (Q43273)

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Revision as of 18:14, 21 April 2023 by Sky (talk | contribs) (‎Cleared an Item: Added to primary parent rock class as subclass)
A coarse-grained rock with abundant augite, some olivine, biotite or hornblende, and essential alkali feldspar and foids, usually nepheline
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Shonkinite
A coarse-grained rock with abundant augite, some olivine, biotite or hornblende, and essential alkali feldspar and foids, usually nepheline

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