Ultimately, the demonstration of a qubit function in spinel will open up unexplored opportunities in quantum technologies, the scientists said. This is the first paper resulting from the ...

In 2016, jeweler Olivia Young of Ouroboros sold a red spinel ring for £6,000 ($7,700). Last year, the client’s insurance company paid out £30,000 ($38,400) to replace it.

Spinel comes in a variety of colors, such as red, pink, orange, purple, blue and green. Due to this range, spinel has been confused with other gems. Some well-known rubies have turned out to be ...