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Kyanite is also strongly anisotropic
The Tatahouine diogenite exhibits the characteristic coarse-grained texture resulting from gradual cooling during formation
and a special notch in the upper jaw for the fourth lower tooth
Thorax (middle): Flexible section with 2–61 articulated segments
preserved for more than 350 million years
1.9" Metacanthina Issoumourensis Trilobite Fossil Devonian Age 400 Mil Yrs Old COA Limb Kyanite is also strongly anisotropicLocation: Lghaft, Morocco Weight: 3. 3 Ounces Dimensions: 2. 1 Inches Long, 1. 8 Inches Wide, 1. 4 Inches Thick (Matrix) The trilobite is: 1. 9 Inches Long, 1 Inch Wide, 0. 4 Inches Thick Comes with a Certificate of Authenticity. The item pictured is the one you will receive. Metacanthina Issoumourensis Trilobites are an extinct class of marine arthropods (Trilobita) that represent some of the earliest known arthropods in Earths history. They first
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