Tag: Rock Crystal

• Tourmalines from Africa

  

  What are Tourmalines? Tourmalines are a type of gemstone from a group composed of boron-silicate minerals, coming in a variety of different colours. They also contain different elements such as magnesium, sodium, aluminium, iron, potassium and lithium. The individual minerals have different chemical compositions but share a common crystal structure, allowing for their plethora of…

  Publication, Tourmaline

  Africa, Bi-Colour, Brazil, Chatoyancy, Chrome Tourmaline, Gem Geneve, Gem Monarchy, Imitation, Indicolite, Jochen Leen, Madagascar, Monarchy, Namibia, Nigeria, Paraiba, Publication, Publications, Rock Crystal, Rubilite, Sri Lanka, The Gem Monarchy, TheGemMonarchy, Tourmaline, Treatments, Verderite, Watermelon, Zambia