News Archive

Ethiopian Opal

For nearly a decade now, the new find of opal in Ethiopia has been both welcomed and debated on issues of stability and high water content. Some of the material can be quite beautiful and with the…

Jadeite, the Enigmatic Gem

Excerpt from the 2nd edition of Secrets of The Gem Trade, The Connoisseur’s Guide to Precious Gemstones by Richard W. Wise, GG (GIA) “On examining jades, one should regard those white in colour as the best, though…

Wonders within Gemstones II

Anthony de Goutière, GG Paperback, 72 pages, Friesen Press, 2014, www.friesenpress.com ISBN: 978-1-4602-3277-4 (Paperback) $18.99 US ISBN: 978-1-4602-3278-1 (eBook) $3.82 US This review for me is a sentimental tribute to the works of Tony de Goutière. Back in 1996, Gemworld published Wonders…

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…