December Birthstone Beads: Turquoise & Tanzanite

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December's official birthstones are turquoise, tanzanite, and zircon — we stock the first two. Turquoise is the classic: most trade turquoise is stabilized for durability, while natural, untreated material is scarce and priced accordingly. Mohs 5–6. Tanzanite's blue-violet comes from heat treatment, which is universal in commercial supply. Explore turquoise beads — including Hubei turquoise — and tanzanite beads .