Spinel is a captivating gemstone celebrated for its vibrant colors and remarkable brilliance. Historically, it has often been mistaken for other gems, notably ruby and sapphire, due to its rich hues and luster.

Mohs Hardness	Suitable for Jewelry Types	Good for Everyday Wear?
8 Learn More	All Kinds of Jewelry: Rings, Bracelets, Earrings, Necklaces, Cufflinks, Money Clips	Yes, with care

 

Birthstone Significance

In 2016, spinel was added as an alternative birthstone for August, alongside peridot. Its diverse color range and historical significance make it a meaningful choice for those born in this month or for anyone seeking a gemstone with depth and character.

 

Origin

Spinel is a magnesium aluminum oxide mineral that forms in metamorphic and igneous rocks. It is often found in the same deposits as corundum (ruby and sapphire), which contributed to historical confusion between rubies and spinels.

 

Major sources of spinel include:

• Myanmar (Burma): Known for producing some of the finest red and pink spinels.
• Sri Lanka: Offers spinels in a variety of colors, including blue, pink, and purple.
• Tanzania: Notably, the Mahenge region is famous for its vibrant pink and red spinels.
• Vietnam: Produces spinels in a range of colors, including cobalt blue, which is highly prized.

 

Chemical Formula

Spinel has the chemical formula MgAl₂O₄, indicating it is composed of magnesium aluminum oxide. The presence of trace elements such as chromium, iron, and cobalt contributes to its wide spectrum of colors.

 

Fun Facts

 

Spinel is a captivating gemstone with a rich history and remarkable properties. Here are ten intriguing facts about spinel:

1. Historical Misidentification

For centuries, red spinels were mistaken for rubies. Notable examples include the "Black Prince's Ruby" and the "Timur Ruby," both of which are actually large red spinels.

2. Color Spectrum

Spinel boasts a diverse color range, including red, pink, blue, violet, green, and even black. This variety is due to trace elements like chromium, iron, and cobalt within its crystal structure.

3. Crystal Structure

Spinel crystallizes in the isometric system, commonly forming octahedral shapes. These well-formed crystals are highly sought after by collectors.

4. Hardness and Durability

With a Mohs hardness of 8, spinel is durable and suitable for various types of jewelry, making it ideal for everyday wear.

5. Lack of Cleavage

Spinel has no true cleavage, meaning it doesn't split along specific planes. This characteristic enhances its durability and makes it less prone to chipping.

6. Synthetic Production

Since the 1920s, synthetic spinel has been produced and is commonly used in class rings and as simulants for other gemstones. These lab-created stones are chemically identical to natural spinel.

7. Fluorescence

Some spinels, particularly red ones, can fluoresce under ultraviolet light, displaying a bright red glow. This property is due to the presence of chromium.

8. Historical Significance

In ancient times, spinels were treasured by royalty and often adorned crowns and regalia. Their vibrant colors and rarity made them symbols of power and wealth.

9.August Birthstone

In 2016, spinel was added as an official birthstone for August, joining peridot and sardonyx. This inclusion highlights its growing popularity and appreciation in the gem world.

10. Magnetic Properties

Certain spinels exhibit weak to moderate magnetic responses due to iron content. This characteristic can assist gemologists in distinguishing spinel from other gemstones.

11. Historical Symbolism: In ancient cultures, spinel was believed to possess protective qualities, often worn as a talisman to ward off harm and bring prosperity to the wearer.

 

Spinel's vibrant colors, exceptional clarity, and rich history make it a gemstone of choice for those seeking beauty and uniqueness in their jewelry.

  

Care and Maintenance

Spinel should be cleaned with warm, soapy water and a soft brush. It's advisable to avoid exposure to harsh chemicals and extreme temperatures.