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HYDROBORACITE CaMgB6O8(OH)6·3H2O (monoclinic) . aggregate of translucent prismatic crystals . Mount Blanco, Death Valley, Inyo County, California . 美國加州死谷產生多種含硼礦物.本礦呈纖維塊狀,絲狀光澤, 硬度2∼3, 為罕見的地方性礦物.
經典名礦欣賞 .2 NO.105