When a Quartz Sandstone is metamorphosed into Quartzite, why doesn't quartzite contain lots of biotite, hornblende, etc. which are common metamorphic minerals? (Hint: consider the chemical composition of quartz compared to compositions of these other minerals.)Need help
I can't think of any rock that is made up of calcite and quartz. I do know you can find them together. Calcite and quartz can both have a very waxy look. The colour is probably from ferric iron impurities in either the calcite or the quartz (maybe both). But I don't know if this has a specific name.
I don't think that your rock is calcite... Calcite is soft enough to be scratched by a fingernail and dissolves easily. If it is waxy and orangish, it might be jasper (it it's opaque) or carnelian (if light passes through). Try looking up Moh's hardness scale to find some ways to test how hard your rock is.
