Simbercite (Simbircite) is named for the Russian city of Simbirsk (now Ulianovsk). It is one of those gemstones that leaves one breathless and in awe. The first records of this mineral date back to 1765, but was named Simbercite in 1985. It is beautiful, rich in amber color, with shades of brown, white, red or green. It is an agatized material that fills in chambers of the Ammonite Lamberticeras. The veins of pyrite were originally the bone of the ammonite. Formed over 160 million years ago, Simbircite with pyrite is both a gemstone and fossil.
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