Discussion :: Building Materials - Section 5 (Q.No.15)
|Vikas said: (Jun 21, 2017)|
|The pyroxenes (commonly abbreviated to Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks. Pyroxenes are silicon-aluminum oxides with Ca, Na, Fe, Mg, Zn, Mn, Li substituting for Si and Al.|
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