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- Spinel - Wikipedia
Polyhedral representation of spinel MgAl 2 O 4 Spinel ( spɪˈnɛl, ˈspɪnəl [7]) is the magnesium aluminium member of the larger spinel group of minerals It has the formula MgAl 2O 4 in the cubic crystal system Its name comes from the Latin word spinella, a diminutive form of spine, in reference to its pointed crystals [5]
- Spinel Gemstone | Spinel Stone - GIA
Spinel is most often cut in cushion and oval shapes; when properly proportioned it has excellent brilliance Like ruby, the color of red spinel is due to traces of chromium Spinel belongs to the cubic crystal system and its characteristic crystal shape is an octahedron, which looks like two back-to-back pyramids
- Spinel Gem, Price, and Jewelry Information - Gem Society
The most comprehensive guide for spinel gemstones on the web Learn about its properties, value, what the experts think, and more
- Everything About The Spinel Gem | Spinel Info Trivia
The spinel gem is as beautiful as ruby, but with an intriguing history Learn why this rare gemstone makes the perfect choice for jewelry, collecting, and more
- Spinel | Gemstone, Hardness, Structure | Britannica
Spinel, mineral composed of magnesium aluminum oxide (MgAl2O4) or any member of a group of rock-forming minerals, all of which are metal oxides with the general composition AB2O4, in which A may be magnesium, iron, zinc, manganese, or nickel; B may be aluminum, chromium, or iron; and O is oxygen
- 13 Gemmy Facts About Spinel - The Overlooked Gem
A new birthstone with vivid colors that span the spectrum Spinel has a spectacular luster, excellent durability, and is a gem of growing popularity
- Spinel Stone Meaning, Value, Price, and Properties
Spinels are beautiful natural gemstones most desired in fiery red and orange hues Spinels are not rubies, but a class all their own Learn all about spinel meaning, value, properties, and price in this comprehensive guide
- Spinel Gemstone Information - An often overlooked Beauty
The almost neon pink Spinels from Mahenge in Tanzania have raised the name of Spinel over the past decade or so and are a stunning and desired gemstone Like most high quality gemstones, the color in Spinel is caused by impurities or minute traces of minerals which get mixed up with the pure state of the gemstone as it forms
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