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Saturday, August 29, 2026
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Minerals

    Finished Quintet ge cutting design in smoky quartz.

    Gem Cutting: How to Facet a Large Quartz Gemstone

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    ametrine crystal from Anahi Mine, Bolivia isolated on white background

    Ametrine: The Bicolor Quartz of Amethyst and Citrine

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    Wishing Stones: Gemstone Lore & Legend

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    quartz mineral identification

    How to Identify Quartz Crystals

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    Montana’s Dryhead fluorescent agate shows a dramatic color shift when short-wave UV light excites the uranyl ions.

    Fluorescent Agate: Why Some Agates Glow Under UV Light

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    Under UV light, an otherwise drab rock colorfully glows from within because of its fluorescent mineral properties

    Mineral Properties That Seem Like Magic

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    boulder opals from australia illustrate the beautiful colors that come form how is opal formed

    How Is Opal Formed? The Science Behind Its Colors

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    afghanite uv rocks specimen

    UV Rocks: A Guide to Fluorescent Minerals

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    Vesta, an asteroid included in the notable asteroid space rocks

    Asteroid Belt Rocks: Clues to Earth’s Formation

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    An artist’s depiction of a meteoroid beginning to burn up upon entry into the Earth’s atmosphere.

    Meteoritics: The Science of Meteorites

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