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where the resin hardens and encapsulates the metals and crystals
Pieces measure approximately 60mm (AVERAGE SIZE)
Pieces measure approximately 2"
Extra Quality Blue Kyanite Blade Clusters
Tumbled Stromatolite / 20-35mm AVG - 1 LB. LOT Menu Geodes where the resin hardens andQuantity: 1 pound Average size range: 20 to 35 millimeters Stromatolites are layered sedimentary stones formed by photosynthetic bacteria. These bacteria form mineral layers by cementing local stone, sand, and gravel together over long periods of time. These structures can reach over 3 feet tall, and fossilized stromatolites are useful records of Precambrian life in paleontology.
