Picrite (Q41879)

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Revision as of 14:01, 21 April 2023 by Sky (talk | contribs) (‎Created a new Item: Added initial named and identified rock item from Mindat)
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Picritic rocks (fine grained ultramafic or basaltic rocks with <53% SiO2, (Na2O+K2O)18%) defined chemically as having 1-2% (Na^2O+K^2O)
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Picrite
Picritic rocks (fine grained ultramafic or basaltic rocks with <53% SiO2, (Na2O+K2O)18%) defined chemically as having 1-2% (Na^2O+K^2O)

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