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 word …

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 belongs to the cubic crystal system and its characteristic crystal shape is an octahedron, which looks like two back-to-back pyramids. Like ruby, spinel is found in alluvial deposits; it ranks 8 on the …

May 29, 2024 · Spinel has often been confused for ruby or sapphire. But this durable gemstone, which is rarer than a diamond, is gaining popularity due to its color, durability, and more affordable price point.

Spinel is a gemstone with a complex history, incredible diversity, and unique physical properties that have intrigued people for centuries. Its discovery intertwined with rubies, its wide range of vibrant …

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 …

Jun 18, 2025 · But spinel is a gem in its own right, with unique properties, vibrant colors, and a fascinating backstory. In this guide, we’ll explore the meaning behind spinel, its physical and …

3 days ago · Spinel gemstone buying guide for US buyers. Learn about quality, color, origin, and pricing to choose the best spinel with confidence.

Dec 28, 2025 · Spinel is one of the most underrated gemstones for engagement rings and fine jewelry. It’s naturally untreated, exceptionally durable, rarer than sapphire, and available in a wide range of …

Mar 28, 2025 · Spinel is a magnesium aluminum oxide (MgAl₂O₄) that forms in metamorphic and igneous rocks. It crystallizes in high-temperature environments, often alongside rubies and sapphires …