Tumbled Serpentine / 25-35mm AVG - 1 LB. LOT #3 their hard skeletons accumulate calcium

their hard skeletons accumulate calcium carbonate that is secreted by other members of the reef

Avg Size Range: (5 to 20 millimeters)

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Tumbled Serpentine / 25-35mm AVG - 1 LB. LOT #3 their hard skeletons accumulate calciumQuantity: 1 pound Average size range: 25 to 35 millimeters Serpentine is a metamorphic rock that forms when the stone absorbs large amounts of water under high pressure, and may contain other minerals like chrysotile, lizardite, or magnetite. Serpentine is named for its signature snake skin texture and patterns.