An Unbiased View of Crystal
Calcite crystals are frequently Utilized in optical machines, as well as the graphite in pencil direct are sheets of crystals that in essence crack aside layer by layer to jot down. Silica can kind silicate crystals that happen to be the basis for quartz, mica, olivine, and a number of other crystals and minerals.⒉棉、云雾或渣状包裹体