turquoise Archives - S.Taylor Jewellery Appraisal & Consultation
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turquoise Tag

Turquoise - A hydrated copper and aluminum phosphate What makes turquoise "Sleeping Beauty"? The answer is it's origin. Origin plays a significant factor in valuation.    A very high percentage of turquoise currently on the market is treated, dyed or imitation. So where does turquoise come from? Historically fine grade goods came from...