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Each specimen provides a window into prehistoric oceans
about 500 square miles of sediment remain today
The Dawn Redwood (Metasequoia) is a rare living fossil tree dating back to the age of dinosaurs
Their large
3.1" Natural Rough Black Tourmaline Mineral Crystal Specimen Schorl Brazil Hadrosaurus Each specimen provides a windowLocation: Brazil Weight: 6. 8 Ounces Dimensions: 3. 1 Inches Long, 1. 6 Inches Wide, 1. 4 Inches Thick The item pictured is the one you will receive. Black Tourmaline, or Schorl, is a common but remarkable member of the tourmaline group, found in igneous and metamorphic rocks. Its natural striated crystals, deep black to dark brown color, and glassy to resinous luster make it a classic mineral for study, collection, and jewelry. Black Tourmaline has a