Necklace with birthstones by month featuring sapphire, ruby, amethyst, garnet, and diamonds set in white gold

Birthstones by Month: What is Yours?

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Amethyst crystals lining a geode section from Rio Grande do Sul, Brazil, one of the world’s most important amethyst sources.

Amethyst: A Complete Field Guide

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curling stones

Curling Stones: Olympic Granite

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madonna of the chair mosaic

Italian Mosaic Art in Stone

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Is ice a mineral. Yes. It is in full display in this Icelandic glacier lagoon bay frozen with ice.

Is Ice a Mineral?

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Mt Vesuvius rises up above the ruins of the Firum in Pompeii.

Famous Volcanoes in Italy: Fiery Trio

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blue cap tourmaline

Blue Cap Tourmaline: America’s Gem

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benitoite specimen

Neptunite: Black Outside, Red Within

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Blue Gems & Minerals: A Collector List

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two cm benitoite specimen

Benitoite: California’s Rare State Gem

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