There are two kinds of sodium lights: Low Pressure (LPS) and High Pressure (HPS). These lamps are mostly used for street lighting as well as industrial uses. The lamp works by creating an electric arc through vaporized sodium metal.
Enhanced Turquoise. Enhanced Turquoise is a natural stone that has only been treated with either chemicals and heat, or just heat to enhance the color and harden the stone. This type of treatment keeps the color from fading over time and makes more of the harder turquoise available for the market.
Answer: 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 natural color of turquoise ranges from chalky white to a yellowish green.Of course this leads into yellow turquoise, which is a natural material, but an extremely rare form of turquoise.nswer: 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 natural color of turquoise ranges from chalky white to a yellowish green.