Spinel (/ spɪˈnɛl, ˈspɪnəl / [7]) is the magnesium / aluminium member of the larger spinel group of minerals. It has the formula MgAl. 4 in the cubic crystal system. Its name comes from the Latin …

For centuries, spinel, the great imposter, masqueraded as ruby in Europe’s crown jewels. The finest red spinel colors are pure red to slightly purplish red hues of medium to medium-dark …

May 29, 2024 · The most comprehensive guide for spinel gemstones on the web. Learn about its properties, value, what the experts think, and more.

Spinel is a new birthstone with vivid colors that span the spectrum. It has a spectacular luster, excellent durability, and its current price might be at a low that you will never see again. Here …

Aug 2, 2021 · Spinel is a mineral with a lot of history. Long mined in Sri Lanka, Afghanistan, Myanmar, Vietnam, and Thailand, spinel garnered deep appreciation for its beauty, even …

Mar 26, 2025 · How Spinel Forms. Spinel is a magnesium aluminum oxide (MgAl₂O₄) that forms in metamorphic and igneous rocks.It crystallizes in high-temperature environments, often …

Spinel occurs in the same bright red and blue colors as rubies and sapphires. Spinel forms in the same rock units, under the same geological conditions, and is found in the same gravels. …

Spinel offers a range of hues, from orange to intense “stoplight” red, vibrant pink, and all shades of purple, blue, and violet through bluish green. Intense reds and pinks are caused by traces of …

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 …

Aug 24, 2023 · Spinel is a mineral that belongs to the group of oxides and forms in various colors, making it a popular gemstone. Its chemical composition is magnesium aluminum oxide …