is purple turquoise a natural stone?

Answer 1

Yes it is natural, but not primary. In other words, it is not found directly in rocks like many other minerals.
Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula CuAl6(PO4)4(OH)8·4H2O. It is rare and valuable in finer grades and has been prized as a gem and ornamental stone for thousands of years owing to its unique hue. In recent times turquoise, like most other opaque gems, has been devalued by the introduction of treatments, imitations, and synthetics onto the market, some difficult to detect even by experts.
As a secondary mineral, turquoise apparently forms by the action of percolating acidic aqueous solutions during the weathering and oxidation of pre-existing minerals. For example, the copper may come from primary copper sulfides such as chalcopyrite or from the secondary carbonates malachite or azurite; the aluminium may derive from feldspar; and the phosphorus from apatite. Climate factors appear to play an important role as turquoise is typically found in arid regions, filling or encrusting cavities and fractures in typically highly altered volcanic rocks, often with associated limonite and other iron oxides. In some occurrences alunite, potassium aluminium sulfate, is a prominent secondary mineral. Typically turquoise mineralization is restricted to a relatively shallow depth of less than 20 m, although it does occur along deeper fracture zones where secondary solutions have greater penetration or the depth to the water table is greater.
I have not heard of PURPLE torquiose. But I guess it is possible. Since synthetic material is very difficult to distinguish from the natural ones, you should be very careful if you intend to buy one.

Answer 2

Purple Turquoise

Answer 3

Purple Copper Turquoise

Answer 4

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Alexandrite is noted for color change. Take it to a jewelry store that has a gemologist. You will probably need to order something to match the color. Natural stones vary widely in the amount of color change. (They often look green/turquoise indoors and purple/bluish outside.) And if the stone came from the MidEast, it's probably natural. Lab Created stones are "perfect" in that they range the complete amount of change - they won't match. Most likely this is what you are seeing on webites - lab created stones. (and YES lab created stones are much less expensive than natural ones - and still they are expensive!) (OH, and under black light they do WEIRD things!) Hope that helps!

Answer 5

Look up Colbaugh Processing Inc. The source for kingman turquoise

Answer 6

I found the answer to this to be: Crushed turquoise mixed with a dyed resin incased in plastic

Answer 7

yes it is found in places such as Texas and New Mexico

Answer 8

nice