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Why Some Rocks Glow Under Ultraviolet Light
为什么某些岩石在紫外光下会发光
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Certain minerals absorb invisible UV light and re-emit it as visible light.某些矿物吸收不可见的紫外线，并将其重新发射为可见光。
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This effect is called fluorescence and happens in many rocks.这种现象称为荧光，许多岩石都具有这一特性。
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Fluorite, calcite, and willemite are common glowing minerals.萤石、方解石和硅锌矿是常见的发光矿物。
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Sunlight has a little UV, but black lights show it best.阳光中含少量紫外线，但黑光灯最能显现其效果。
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Glowing doesn’t mean the rock is radioactive or dangerous.发光并不意味着岩石具有放射性或危险。
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Geologists use UV lamps to identify mineral types in the field.地质学家在野外使用紫外灯识别矿物种类。
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The glow color depends on tiny impurities inside the crystal.发光颜色取决于晶体内部的微量杂质。
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It’s a safe, natural way to explore Earth’s hidden chemistry.这是一种安全、天然的方式，用以探索地球隐藏的化学奥秘。