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").