Turquoise

Turquoise is one of the first gems used for personal decoration. It was used by rulers of ancient Egypt around 5,500 BC. The name of the turquoise dates back to the 16th century, as it entered Western Europe through Asia Asia, it comes from the old French "Turkish".

Turquoise is an opaque sky blue, blue green, or apple green stone, with black veins or brown, dark gray, or other mineral rocks. It also hybridizes with malachite and chrisokola.

This is the case of dyed turquoise. Turquoise is a porous material that is easily accepted by dyes. This dye is used to turn blue-green color into a more marketable color. Dyes can also be used to create horrible colors. Complex and recombinant turquoise is the most commonly stained material. Dyestuffs can be used to color the turquoise color or to color the polymer binding material. Black or brown dyes are sometimes used to change the color of the matrix material to make it more clear and uniform. Dyed turquoise is not always worth more than unprocessed material of similar color and quality.

Some blue-green areas produce materials with distinctive colors and appearance. For example, the sleeping beauty mine is known for light blue turquoise blue, there is no material. Most of the blue-green color of the Kingman mine is bright blue and there is a black matrix of spider's web. At the Moreensi mine, a large amount of dark blue turquoise containing pyrite is generated in the matrix. Most of Bisuba Turquoise is a bright blue based on chocolate brown. Those who know the blue-green color normally associate the stone (although not always) with a specific landmine correctly.

Turquoise Cabochon: Various turquoise cabochons from various places. From the left to the right of the top row: blue-green blue-green cabochon, Chinese black matrix, tear-like color of Arizona Sleeping Beauty Mine, slightly greenish blue-green convex, two sky blue-green Round jewel from the chocolate brown matrix of Altyn-Tyube mine in convex Kazakhstan. Middle row: A small azure turquoise colored cabochon from the Arizona Kingman mine, and two small round azure cabochons from the Arizona Sleeping Beauty Mine. At the bottom: Two small cabochons in the Black Matrix Nevada from an unknown mine, a tear-shaped cabochon with a Newlandsdes black matrix, a greenish blue-green color. A red brown rectangle from Nevada # 8 mine to a somewhat greenish blue-green rectangular cabochon