A set of Emperor of Qing Dynasty Turquoise Stone Seals
Lot No. ：HRCS-201007
Feature：A stone seal. Turquoise (2*) stone.
* Turquoise is an opaque, blue-to-green mineral that is a hydrated phosphate of copper and aluminium. It is rare and valuable in finer grades and has been prized as a gemstone and ornamental stone for thousands of years owing to its unique hue. The word turquoise dates to the 17th century and is derived from the French turquois meaning "Turkish" because the mineral was first brought to Europe through Turkey, from mines in the historical Khorasan Province of Persia.
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