Tanzanite jewellery: its rich blue hues ranging from ultramarine to light purple make tanzanite a highly desirable gemstone

What is Tanzanite? Tanzanite is a trade name that was first used by Tiffany and Company for gem-quality specimens of the mineral zoisite with a blue color. Tiffany could have sold the material under the mineralogical name of “blue zoisite,” … Continued

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