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User:Tochozhang/沙盒甲：Plagioclase


黃鐵礦
基本資料
類別硫化物
化学式二硫化亚鐵- FeS2
性質
分子量119.98
顏色淡銅黃色
晶体惯态立方體、正八面體、五角十二面體
晶系等軸晶系
解理差
断口參差狀，有時貝殼狀
韌性/脆性易脆
莫氏硬度6–6.8
光澤金屬光澤
條痕綠黑色
透明性不透明
比重4.95–5.10
折射率不透明體
熔点1,177–1,188 [1]
熔性2.5–3
溶解度不溶於水
其他特徵順磁性
Plagioclase
A microphotograph of a plagioclase crystal under cross polarized light. The plagioclase crystal shows a distinct banding effect called a Polysynthetic twinning. (unknown scale)
基本資料
類別feldspar, tectosilicate
化学式NaAlSi3O8-CaAl2Si2O8
性質
晶系triclinic
莫氏硬度~6
條痕white
双折射1st order
多色性none
  1. ^ [1]
More
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User:Tochozhang/沙盒甲：Plagioclase
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