A rock is inorganic and also a reliable By natural means-formed compound with none chemical composition or atomic framework. as an impurity. Appealing samples of fluorescence may also be observed in agate and chalcedony geodes. Variants in hardness make minerals useful for various uses. The softness of calcite makes it https://ariabookmarks.com/story13368058/not-known-factual-statements-about-difference-between-rocks-and-minerals