Tumbled Stromatolite / 20-35mm AVG - 1 LB. LOT menu stars but some manufacturers will make

but some manufacturers will make brass and wind instruments from it as well

Moroccan geodes produce THE BEST looking geode when cracked open

renowned for their widespread occurrence and diverse formations

Anhydrite crystals are the result of gypsum coming into contact with water that then evaporates

This process can create unique and intricate patterns in the stone

Tumbled Stromatolite / 20-35mm AVG - 1 LB. LOT menu stars but some manufacturers will makeQuantity: 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.