Yeah calcite is in geodes. you can find some in stores or you can go on the internet and there is proof that there is calcite in geodes if you go to google.com and go to images and type in calcite in geodes ask wiki answers for more info :)!!!!
When you crack open a rock, you may find mineral crystals, fossil imprints, or veins of minerals such as quartz or calcite. The middle of a rock can reveal its composition, history, and formation process.
The answer is yes.lol
Any limestone rock is full of it. Calcite (CaCO3), that is.
No one seems to know how hard scandium is on the mohs hardness scale (believe me i looked everywhere and they all say N/A) but i did manage to find it's hardness on the Brinell hardness scale. On the Brinell hardness scale it is 750 MPa. If you find how hard it is on the mohs scale please revise my awnser to also include that.
It effervesces vigorously. [effervesces means to fizz or bubble] It reacts with strong acids, releasing carbon dioxide: CaCO3(s) + 2 HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l)
You may have to stretch your definition of gems if you want to find it in Ohio. From looking at some mineral maps, Flints, agates, and other varieties of cryptocrystalline quartz are up there. I see limestone, so maybe some calcite or dolomite crystals. Gypsum and Salt areas might produce some crystals also. Any major city should have a gem and mineral club that would have better information.
There is insufficient information to answer this question. What mineral? Also, it seems hard to imagine that only one explorer used a given mineral to find his/her way.
It is a mineral that find in the mountains
The rock used to find a mineral's streak color is unglazed porcelain.
mineral fluorite
massvolume