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What is Boulder Opal

Boulder opal is a distinct variety of precious opal that forms within the cavities, seams, or fissures of ironstone boulde…

Gold from Earth’s Core Found in Hawaiian Volcano

Over 99.999% of Earth’s gold is trapped in its core, slowly reaching the surface through volcanic activity. Earth’s core ha…

What is the Moon Made Of

To the naked eye, the Moon appears gray with striking light and dark patches, yet its simple appearance hides a complex geol…

Natural Diamond Colors

Natural diamonds sparkle with a striking array of colors, from the flawless clarity of colorless gems to the rare vibrancy o…

What is Flower Agate

Flower Agat e, a trade name for a distinct chalcedony variety, exhibits a translucent, cryptocrystalline structure with in…