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Blue Apatite from Madagascar
Crocidolite is altered to iron oxides and then replaced by silica
Nice piece showing the hydrothermal deposition
but Morocco is calling it aragonite
Measuring 6 inches in length
Russian Ammonite Quenstedticeras C Obsidian Blue Apatite from MadagascarThese 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
US$ 34.99
US$ 104.30
