Home > Nozare/domēns > Geology; Mining > Minerals
Minerals
Naturally occurring substance that is solid and stable at room temperature, representable by a chemical formula, usually abiogenic, and has an ordered atomic structure. It is different from a rock, which can be an aggregate of minerals or non-minerals, and does not have a specific chemical composition. The general definition of a mineral encompasses the following criteria: 1 - Naturally occurring 2 - Stable at room temperature 3 - Represented by a chemical formula 4 - Usually abiogenic 5 - Ordered atomic arrangement
Contributors in Minerals
Minerals
Zilais dimants
Mining; Minerals
Par msn.news.com ir ziņots, ka reto zilo 29.6 karātu dimants ir nesen atklāts Dienvidāfrikā ar cenas vērtību, sākot ar desmitiem miljonu dolāru. Zīļu lieluma dimants bija izrakta pie Cullinan ...