Tumbled Scolecite / 20-40mm AVG - 1 KILO LOT Menu Pyramids and the basalt eventually wears

and the basalt eventually wears away to leave the geode behind

Average size range: 150 to 300 grams

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double-terminated crystals resembling Herkimer Diamonds

Tumbled Scolecite / 20-40mm AVG - 1 KILO LOT Menu Pyramids and the basalt eventually wearsQuantity: 1 kilogram Average size range: 20 to 40 millimeters Scolecite is a hydrated variety of zeolite, meaning it contains water molecules, and it also has very small trace amounts of sodium and potassium in its crystalline structure. Normally white or colorless, scolecite usually grows in very long and thin needle like formations that are extremely fragile.