Interesting Engineering on MSN1 天
After diamonds, scientists create qubit centers in gemstone spinel
Scientists introduced atomic defects in spinel using cerium, and voilà! The gemstone became a solid qubit system.
Gemological Institute of America3 年
Flux-Grown Synthetic Ruby with Hydrothermal Synthetic Seed Crystal
Figure 1. The zigzag-like growth structure observed in this 1.18 ct synthetic ruby is characteristic of hydrothermal growth. Photomicrograph by Nathan Renfro; field of view 1.42 mm. The Carlsbad ...
Front Page Detectives on MSN10 天
Experts Discover Ancient Life Locked Inside a 2.5 Billion-Year-Old Ruby as a Residue
Experts Discover Ancient Life Locked Inside a 2.5 Billion-Year-Old Ruby as a Residue In 2021 inside an opulent gemstone, ...
Gemological Institute of America3 年
Dyed Quartzite Imitation of Ruby-in-Zoisite
Figure 1. Green to dark green and pinkish purple to dark purple dye concentrations were observed in the fissures and structure of this quartzite, which resembled ruby-in-zoisite. Photo by HyeJin ...
Malawi seeks billions of dollars from US firm over ruby sales
Malawi's government is demanding the astonishing sum of $309bn (£245bn) in unpaid taxes and royalties from a US-based gemstone company for rubies exported from the southern African state over the last ...