if anyone knows anything about minerals plzz help. i need to know for a project.
What's interesting is that it doesn't appear that dolomite is being naturally produced like it has in the past. Why is this Mark? I found this passage: Although dolomite does not form on the surface of the earth at the present time, massive layers of dolomite can be found in ancient rocks. Dolomite is one of the few sedimentary rocks that undergoes a significant mineralogical change after it is deposited. Dolomite rocks are originally deposited as calcite/aragonite-rich limestone, but during a process called diagenesis, the calcite and/or aragonite is transformed into dolomite. Magnesium-rich ground water containing a significant amount of salt is thought to be essential to dolomite formation. Thus, warm, tropical marine environments are considered the best sources of dolomite formation.
It is not rare. It's quite common, in fact. Further, be sure of what you're talking about, because dolomite is both a mineral and a rock (sometimes called dolostone). There's a lot of information for you at the two links below.
Depends where you are at. It's pretty common. I find it a lot when running around some of the older mines in the mountains.
