- Natural and untreated turquoise is VERY rare (about 1% of all turquoise in jewelry)
- Stabilized turquoise is treated in various ways, and is considered to be genuine turquoise. Even Sleeping Beauty turquoise is treated. Methods include heat, apoxy, and dyes. Nearly ALL of the genuine turquoise sold is stabilized, including turquoise jewelry on shopping channels, in stores, and in jewelry retailers.
- Reconstituted turquoise is considered to be NOT genuine turquoise. It's powdered turquoise mixed with chemicals and glues and dyes. It is unethical to refer to this as "genuine turquoise" as it is mostly other materials.
- Block turquoise is made entirely out of dyed plastics and chemicals, and contains no turquoise.
- Dyed Howlite/Magnesite is NOT turquoise, but is a simulated turquoise.
- Yellow Turquoise is NOT Turquoise, but is African yellow jasper. African green jasper is also sold as "green turquoise" but there is NO TURQUOISE in this stone---it is jasper, a type of Quartz.
MOJAVE TURQUOISE/COPPER TURQUOISE
|Blue Mojave Turquoise|
The GIA (Gemological Institute of America) did a detailed exam of this turquoise in 2010 (you can read the pdf here) and it was found to be genuine turquoise. Because small pieces of genuine turquoise are bonded into a larger piece, whether dyed or not, the end product is considered to be genuine turquoise.
The purple and green turquoise samples were dyed, and the blue composite turquoise was undyed. The metallic "matrix" is found to be genuine ground pyrite or copper. If you look closely, you can see the blue turquoise peeking through the colored polymers in both the green and purple examples below. I assume they use yellow dyes to make the green, and reddish pink dyes to make the purple.
|Purple Mojave Turquoise|
|Green Mojave Turquoise|
This is a BEAUTIFUL and affordable way to wear turquoise! (These are genuine turquoise, so they aren't "cheap" but are well-priced.) Although it's an assembled gemstone, it is made of all natural turquoise, and "blue Mojave turquoise" contains NO dyes. The other colors are also extremely beautiful and interesting. These are genuine turquoise gemstones, in a beautiful array of colors----much, MUCH more beautiful than dyed Howlite (which can be found in lots of weird neon greens and yellows, etc.) and made from all GENUINE turquoise pieces.
|Turquoise, Spiny Oyster, MOP Composite Gemstones|
|"Copper Obsidian" Stones--plus Turquoise?|