These are believed to be previously unreported for gem corundum. Allanite, muscovite, and fuchsite (chromium-bearing muscovite) were identified for the first time in ruby and sapphire from Snezhnoe.

TOKYO, April 2, 2025 /PRNewswire/ -- Corundum Systems Biology (CSB), a leading investment company dedicated to advancing life-changing systems biology solutions for human health and well-being ...