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an ultra-small quartz crystalline mineral
Nice piece showing the hydrothermal deposition
Dimensions: 5
Measuring 6 inches in length
Russian Ammonite Quenstedticeras C Obsidian an ultra-small quartz crystalline mineralThese Quenstedticeras Ammonite come all the way from Russia. Quenstedticeras is a genus Upper Callovian (Middle Jurassic) ammonites known for their high quality, often pyritized and iridescent, fossils found primarily in Russia. These cephalopods, which lived in marine environments, are characterized by moderately evolute shells with strong, bifurcating ribs, forming a starburst pattern. Measuring 1. 3 inches in length, 1. 4 inches in height, and . 4
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