22088 - Beautiful Purple Natural Amethyst Geode Minas Gerais District - Brazil Myliobatis Search for other: Lunar meteorites

Search for other: Lunar meteorites Comments: Approved 28 Mar 2017 Writeup Writeup from MB 106:

It is a quite dominant species in the phosphate quarries in this sector of Morocco

well prepared

Website (private address)

Possible coatings include gold (resulting in a stone called aqua aura)

22088 - Beautiful Purple Natural Amethyst Geode Minas Gerais District - Brazil Myliobatis Search for other: Lunar meteoritesAmethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiation, impurities of iron and in some cases other transition metals, and the presence of other trace elements, which result in complex crystal lattice substitutions. The hardness of the mineral is the same as quartz, thus making it suitable for use in jewelry.