What color turquoise is the best?

The most-prized turquoise color is an even, intense, medium blue, sometimes referred to as robin's egg blue or sky blue in the trade.

Read more

Where is purple turquoise mined?

Only available from Kingman in the Kingman Mining District of Arizona's Mohave County in the United States, every Purple Mohave Turquoise has its own beautiful mosaicking, making every one uniquely individual. Is purple turquoise a natural stone? Hey Pat, I am sorry, but there is no natural purple turquoise. Turquoise is a hydrous phosphate of copper and aluminum, both of which cause the blue to green color. The term "purple turquoise" has also been used as a synonym for the mineral Sugilite, but turquoise and sugilite are two totally different substances!

Moreover, why does turquoise turn green?

Because all natural turquoise is at least a little porous, things like oils, soaps and other chemicals can get into the stone and can change its color. The pores of the stone will even absorb the natural oils produced by the skin causing it to turn a greenish color over time. Is turquoise magnetic? Imitation Turquoise: Natural blue and green Turquoise gems are weakly to strongly magnetic due to copper salts (copper phosphate), but imitations made from dyed natural materials such as dyed Howlite, dyed Magnesite and imitation Odontolite (dyed fossil bone or ivory) are easily detected by their inert responses.