No.39 coal is one of high-metamorphism anthracite with black color and near-metallic luster in which semibright coal and semidull coal are dominant lithetype and there is a little dull coal.
大田水井坑井田39号
层属高变质
,灰黑色至黑色
主,似金属光泽,宏
岩类型以半亮型和半暗型主,
暗淡型;
No.39 coal is one of high-metamorphism anthracite with black color and near-metallic luster in which semibright coal and semidull coal are dominant lithetype and there is a little dull coal.
大田水井坑井田39号层属高变质,灰黑色至黑色主,似金属光泽,宏岩类型以半亮型和半暗型主,暗淡型;
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