They form in sedimentary rocks like limestone, where mineral-rich water flows into cavities, depositing crystals over time.

It is the rarest mineral known to science ... Kyawthuite is thought to have originated in pegmatite, an igneous rock formed during the late stages of magma crystallization. Myanmar’s geology ...

Rocks and minerals contribute essential raw materials for any civilization, and in a technological society minerals (and the rare elements they contain) are especially sought after. In the past ...

Taub Avi, CEO of the precious stone exploration company Shefa Yamim, said it was discovered by the company in volcanic rock in northern Israel's Sevulun Valley. The mineral was founded embedded ...