bn:07029678n
Noun Concept
Categories: Silicate mineral stubs, Tectosilicates, Feldspathoid
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feldspathoid  F'oid
EN
The feldspathoids are a group of tectosilicate minerals which resemble feldspars but have a different structure and much lower silica content. They occur in rare and unusual types of igneous rocks, and are not found in rocks containing primary quartz. Wikipedia
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EN
The feldspathoids are a group of tectosilicate minerals which resemble feldspars but have a different structure and much lower silica content. They occur in rare and unusual types of igneous rocks, and are not found in rocks containing primary quartz. Wikipedia
Silica poor tectosilicates, mineral grouping Wikidata
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