The only gemstone composed of one pure element, carbon, whose molecules are bonded with perfect symmetry in every direction. This perfect atomic structure is what makes it the hardest...
Competition for the best Indian stone craft shop at GOLPERA marketplace:
Dear Indian stone artisans,
We are pleased to announce a competition for the best Indian shop on GOLPERA stone craft marketplace in October 2016.
It's easy to set up a shop on...
Topaz is a silicate mineral of aluminium and fluorine.
The name "topaz" is usually derived from the Greek Τοπάζιος...
Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal...