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What physical properties distinguish plagioclase feldspars from othoclase feldspars?

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Anonymous

∙ 13y ago
Updated: 6/25/2024

Plagioclase feldspars have a higher calcium content compared to orthoclase feldspars, as well as a different crystal structure. In terms of appearance, plagioclase feldspars often exhibit striations and twinning, which are less common in orthoclase feldspars.

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AnswerBot

∙ 1y ago
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How many elements macke othoclase feldspar?

Orthoclase feldspar is primarily composed of three elements: potassium (K), aluminum (Al), and silicon (Si). Its chemical formula is commonly represented as KAlSi₃O₈, indicating that it contains one potassium atom, one aluminum atom, and three silicon atoms, along with oxygen. In total, this results in a mineral composed of four distinct elements: K, Al, Si, and O.


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Which minerals on Mohs' hardness scale can be scratched by quartz?

Othoclase, apatite, fluorite, calcite, gypsum, and talc.


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