File:Amphibole - Cummingtonite w- chlorite in schist Magnesium iron silicate 3800 foot level Homestake Mine Lawrence COunty South Dakota 2071.jpg
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Amphibole_-_Cummingtonite_w-_chlorite_in_schist_Magnesium_iron_silicate_3800_foot_level_Homestake_Mine_Lawrence_COunty_South_Dakota_2071.jpg (568 × 470像素,文件大小:93 KB,MIME类型:image/jpeg)