Opal Identification
GEMMOLOGICAL LABORATORY FACT SHEET Chemical composition of Opal: Si0 2nH 20 – Hydrated Silica. • Water content in Precious Opal 3-10%. • Water content…
GEMMOLOGICAL LABORATORY FACT SHEET Chemical composition of Opal: Si0 2nH 20 – Hydrated Silica. • Water content in Precious Opal 3-10%. • Water content…
100 YEARS OF PASSION FOR GROSSE & BIJOUX CHRISTIAN DIOR, Vivienne Becker (et al.), 2010. 500 BRACELETS, Marthe LeVan, 2005. 500 EARRINGS, Marthe LeVan, 2007….
AUSTRALIAN NATURAL HISTORY, The Australian Museum-Quarterly, 1963. AUSTRALIAN NATURAL HISTORY, Opal Fossils; Flashes From Lightning Ridge, by Alex Ritchie, Vol.21 No.9, 1985. AUSTRALIAN NATURAL HISTORY, Sea…
A CENTURY PLUS OF OPAL PUBLICATIONS, Hans E.R. de Boer, 1994. A CLOSE CALL AT YOWAH, Herman Kreller, 1998. A FIELD GUIDE TO AUSTRALIAN OPAL,…
Coober Pedy ‘Kupa Piti’ is an Aboriginal name meaning ‘White Man in a Hole’ in the language of the Kokatha people the traditional owners of the area. … Read more
The Queensland Opal fields are spread over a belt 300-400km wide with a 1000km strike. Trending in a north-westerly direction from the New South Wales border at Hungerford up to Kynuna and stretching west of Cunnamulla, Blackall and Winton out to Noccundra, Palparrara and Hamilton.
The Geology of Opal Country All the original finds throughout Australia were ‘floaters’ – pieces of opal, which had been eroded out from the horizontal … Read more
‘Legends on the Fields’ OPAL MINERS are crazed by the infection of feminine beauty that is the object of their pursuit, the ‘Queen of Gems‘ … Read more
Lightning Ridge – ‘Home of Black Opal’, the most highly prized variety in the trinity. The ‘Ridge’ is unrivalled, nearly all of the world’s Black … Read more
Blood Diamonds & Battlers The United Nations General Assembly recognized that conflict diamonds are a crucial factor in prolonging brutal wars in parts of Africa. … Read more
Quintessential Gemstone of Art Nouveau Jewellery The Art Nouveau period occurred during the last two decades of the nineteenth century and into the first two decades of the twentieth century. … Read more