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礦物之美PARACELSIAN)

PARACELSIAN BaAl2Si2O8 (monoclinic) . translucent primatic crystals on matrix . Benalt Mine, Rhiw, Carnarvonshire, Gwynedd, Wales . 本礦晶體呈柱狀,無色透明玻璃光澤,硬度6,外觀似黃玉,雙晶常見. 形成於頁岩或沙岩中.為罕見之礦.
NO.278