Turquoise's color ranges from sky blue to green. It has a hardness of 6.
Howlite is often dyed to imitate turquoise. Turquoise made in a laboratory has a very uniform color. Chalky varieties of turquoise are often coated with wax or oil to enhance color - and when treated like this, the color change is not permanent.
Turquoise is often fracture sealed. This doesen't mean that it has fractures, it means that it was sealed with an acrylic resin to enhance it's color, texture, and hardness.
Turquoise is somewhat soft so avoid scratches and sharp blows. To be certain and coatings are not removed also avoid hot water and household chemicals.
Reputable dealers will not use the following misleading terms. However, for your protection, I am listing them here:
- "Vienna turquoise" is really a glass imitation.
- Turquoise is found in Australia, Chile, Iran, Mexico, Tibet, USA (Arizona , California and New Mexico).


I would like to thank you for imparting your competence and the time to this post. This is the most significantly post that I’ve ever seen. Good work and much success in your interest. Two Thumbs up!
silver gemstone pendants
http://www.indian-stone-jewelry.com/
Posted by: Indianstonejewelry Garg | 07/09/2011 at 12:47 上午