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礦物之美－（翠綠砷銅礦∼CORNWALLITE）
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CORNWALLITE Cu5(AsO4)2(OH)4 (monoclinic) . blue-green botryoidal crust . Clara Mine, Oberwolfach, Baden-Wurttemberg, Germany . 翠綠砷銅礦常以細小葡萄狀結殼被覆於岩基的間隙，硬度 4.5．鮮豔的藍綠 色，印象深刻．常與 Olivenite , Clinoclase , Azurite , Malachite 共生． |
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