News
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Amazonite vs. Labradorite: Two Feldspars, Two Completely Different Kinds of Color
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One keeps a storm of color hidden until the light finds it. The other carries sea-green color through the stone itself. Meet two very different members of the feldspar family.
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Why Do Some Crystals Glow? A Beginner’s Guide to Fluorescent Minerals
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In daylight, a mineral waits. Under ultraviolet light, hidden color wakes inside it. Here is the science behind fluorescent minerals and how to view them safely.
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Is Obsidian a Crystal? How Volcanic Glass Makes Rainbows, Gold, and Silve
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Obsidian looks like a crystal, breaks like glass, and sometimes keeps entire rainbows inside its darkness. Here is the geology behind the glow.
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Star Rose Quartz: Why a Six-Rayed Star Appears in Pink Stone
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A star sleeps inside certain rose quartz, invisible until the stone, the light, and the viewer find the same angle. Here is the science behind its awakening.
