煤从表面上看是黑色或褐黑色的。你了解煤的微观世界吗?奇特的景色把煤切成薄片在显微镜下观察,可以清楚地看到煤由两部分组成,即一部分是有机物,另一部分是无机物。无机物有石英、方解石、天青石、辉石、蛇纹石、黄铁矿和粘土类矿物等。它们的显微特征与一般岩石矿物薄片观察到的相类似。而有机物则呈现非常奇特的景色。 Coal is black or brown on the surface. Do you understand the microscopic world of coal? The peculiar scene sawing the coal under a microscope to see clearly that the coal consists of two parts, one part of which is organic and the other part of which is inorganic. Inorganic quartz, calcite, celestite, pyroxene, serpentine, pyrite and clay minerals. Their microscopic features are similar to those observed for normal rock mineral flakes. Organics present very strange scenery.