单词 | pyroxene |
释义 | pyroxene [pǝ`räk´sēn] MINERALOGY A family of diverse and important rock-forming minerals having infinite (Si2O6) single inosilicate chains as their principal motif; colors range from white through yellow and green to brown and greenish black; hardness is 5.5-6 on Mohs scale, and specific gravity is 3.2-4.0. |
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