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Publication
"Moonstone" refers to iridescent varieties of potassium feldspars - orthoclase and sanidin.
A sapphire of padparajas is a kind of pinkish-orange corundum, due to which it is isolated from the total mass of other colored sapphires. Unusual and very beautiful color dramatically affect the price of this stone - compared with other colored sapphires, it has a higher price.
The CVD process is based on the decomposition of hydrocarbons (usually methane) in a mixture with hydrogen and the subsequent deposition of diamond on a heated substrate.
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