Prehnite is a calcium aluminum silicate often found in pale green botryoidal or crystalline aggregates. Explore its geology, naming history, care, and modern associations with calm preparation and intuition.
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Moonstone is a feldspar gemstone prized for adularescence, the floating glow created by light interacting with microscopic feldspar layers. Learn its gemology, history, care and modern symbolism of intuition and...
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