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    December Birthstones | Tanzanite, Turquoise, Zircon ...

    • This article is about the three December birthstones: tanzanite, turquoise and zircon. It provides information on their unique colors, sources, treatments and care tips for each of them.… さらに表示

    Birthstones

    If you had to pick one December birthstone, which would it be: tanzanite, turquoise or … さらに表示

    Gemological Institute o…
    Turquoise

    The prized even-colored, intense blue turquoise from Iran is dubbed “robin’s egg blue," "sky blue" and "Persian blue." Some turquoises are treated but can be damaged by heat or … さらに表示

    Gemological Institute of America (GIA)
    Tanzanite

    Only place on earth where tanzanite is mined commercially is in northern Tanzania's Merelani Hills. Thousands of workers recover tanzanite from mines dug over 100 … さらに表示

    Gemological Institute of America (GIA)
    Zircon

    Comes in a wide array of attractive colors including yellow-brown, pink and purple; found in Sri Lanka's Elahera region and Australia's Harts Range near Alice Springs; often locat… さらに表示

    Gemological Institute of America (GIA)
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