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amphibole Article

amphibole summary

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Below is the article summary. For the full article, see amphibole.

amphibole, Click Here to see full-size tableTable 20: Chemical Formulas for Selected Amphiboles from the Four Compositional GroupsAny of a group of common rock-forming hydrous silicate minerals. Amphiboles occur in many igneous rocks as minor and major constituents and form the major component in many gneisses and schists. Some highly fibrous forms are collectively called asbestos.