People Born in August Have a Birthstone That 'Promotes Harmony'—Here's What It Is and the Meaning Behind the Stone first ...

Spinel comes in a wide range of colors, including red, pink, orange, purple, blue and green. As a result, the symbolism of this gemstone depends on its color.

Feature Gems & Gemology, Summer 2023, Vol. 59, No. 2 Color Modification of Spinel by Nickel Diffusion: A New Treatment Michael Jollands, Abadie Ludlam, Aaron C. Palke, Wim Vertriest, Shiyun Jin, ...

Spinel also comes in red, pink and violet, Belley said. Other gems found on Baffin Island include beluga sapphires, used in the Queen's sapphire jubilee brooch, and lapis lazuli, a rock used as a ...

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. Experts say that this ...

Gem-quality spinel (MgAl 2 O 4) occurs in a variety of colors based on the trace elements present within the stone. While synthetic spinels are available in almost any color, some colors are rarely ...

The gemstone spinel, known for its vibrant colors resembling gems like rubies and sapphires, has now been shown to be capable of storing quantum information, making it a viable material in the field ...

Figure 4. Absorbance spectra of Spinel #1 in Glycerin and Cargille 1.720 Figure 5. Absorbance spectrum of Spinel #1 in glycerin. Absorbance Spectra for the Purple-Red Spinel The second spinel was also ...