Author: xsam
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Chromium (Cr) — The Element That Colors Rubies and Saves Your Knife from Rust
*0 — Chromium (Cr) Hundreds of years ago, miners in the Mogok Valley of Myanmar dug a rare gem from the riverbeds. Under sunlight, it glowed red like blood fresh from a pigeon’s chest. The locals called it “pigeon’s blood.” Today, a single carat of top-grade pigeon’s blood ruby can easily fetch over a million…