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containing
hematite rock
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oil
hematite rock
赤铁岩
gen.
The jade mainly consists of illite and a small quantity of feldspar, quartz, hematite, siderite and rutile, which is argillaceous sedimentary rock
这块玉石主要以伊利石为主，含有少量长石、石英、赤铁矿、菱铁矿和金红石，即泥质沉积岩
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