OPTIMIN (SA) is a leading global producer and distributor of specialised industrial minerals. Our premium quality products are fundamental fillers, additives, carriers and...
Crystal Gecko - An Online Resource for all your precoius stones and crystals questions, from How to use, clean and buy through to detailed information about each crystal. You...
Website for selling mineral and crystal specimens from all over Africa.
Omya is a leading global producer of industrial minerals – mainly fillers and pigments derived from calcium carbonate and dolomite – and a worldwide distributor of specialty...