News
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What Is Epidote? The Geology Behind Its Forest-Green Crystals
Epidote can look like a miniature forest caught in quartz. Explore the chemistry, crystal structure, formation, color, and collector appeal of this richly green mineral.
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Why Does Prehnite Look Like Green Bubbles? The Geology of Botryoidal Crystals
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Prehnite often looks less like a crystal than a cluster of rain-softened green bubbles. Those rounded surfaces are a record of mineral-rich water, volcanic cavities, and thousands of tiny crystals growing together.
