Rubies and emeralds get their colours from a common metal
Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...
The University of Chicago Chronicle5 天
Scientists explore how to make quantum bits with spinel gemstones
The gemstone spinel, known for its vibrant colors resembling gems like rubies and sapphires, has now been shown to be capable ...
Mining Weekly1 天
New report highlights lack of transparency in coloured gemstone industry
A new report from coloured gemstones miner Gemfields on the emerald, ruby and sapphire markets “… serves as a reminder of how ...
来自MSN21 天
Where can I sell my loose gemstones, birthstones and crystals?
Gemstones, including rubies, emeralds, and sapphires, can be sold for cash, much the same as diamonds and other jewelry. However, more often than not, those stones have very little resale value ...