Did you know that 90% of the worlds Opal is found in Australia? You also might not realise that depending on which Opal mine you are at you will find very different types of Australian Opal. You can find black Opal in New South Wales, white Opal in Queensland and boulder and matrix Opal in South Australia and Queensland.
Carico Lake Turquoise | Specimen shows the wonderful color variation of blue to green (Faustite?)
OPALIZED WOOD ELECTRIC BLUE FIRE STONE.
NATURAL INDIAN MOUNTAIN TURQUOISE CAB 11.6 cts
A spectacular Spiderweb Turquoise Cabochon from the Durango Silver Company - Turquoise Cabochons Page.
Carico Lake Turquoise. It's clear, iridescent, spring green color is due to its zinc content and is highly unique. Carico Lake turquoise is also found in a dark blue-green color with a black or brown, spider web matrix.
Moonstone - Sri Lanka / moonstone consists of albite, alternating with layers of either Orthoclase or Sanidine. The layering interferes with the light entering the stone, resulting in a shifting blue glow known as adularescence (after the gem's original name: "adularia").