Month: July 2016

Andalusite

Introduction Andalusite is a mineral species crystallizing in the orthorhombic system with the formula Al2SiO5. Two other gem species, namely kyanite and sillimanite, have the same chemical composition as andalusite but with different physical structures. All three form under different conditions of temperature and…

Emerald

Emerald is undoubtedly the most popular variety of beryl. Due to its unusual formation, emerald has a tendency to contain fissures and fractures that diminish its transparency. Included stones are expected and high clarity stones are rare. Color of…

The Power of Provenance

Aside from the gemstones and the workmanship, why do people buy what they buy? It is an age-old question. Marketing 101 teaches that you need to create a unique approach to positioning a product. What is more…

Scottish Gemmological Association Conference

April 29-May 2, 2016, Peebles, Scotland This annual conference took place at the Peebles Hydro Hotel, a Victorian spa overlooking the beautiful Tweed Valley in the quaint small town of Peebles. The SGA Conference is a popular conference…