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NATURAL SALT CRYSTALS

CHAPTER 14 NATURAL SALT CRYSTALS Picture #109 10-inch-tall Rock Salt Stalactite Some natural minerals can be damaged by water alone. Halite (natural rock salt) and selenite (related to Epsom salts) are particularly vulnerable to water damage within minutes or hours. I recently had an entire box of sand selenite crystals start to melt from being […]
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