Iron-Bearing Tourmalines – More Than Meets the Eye

When people talk about tourmalines, they usually think of pink, green, or, of course, Paraiba (how could I not mention it? I’m still loyal to my favorite tourmaline). But today, let’s focus on a different kind—tourmalines where iron plays a key role.

What colors do they come in?

Iron in tourmaline creates the most intense and deep shades:

• Blue – ranging from cool grayish-blue to rich sapphire tones.

• Green – often with a cool, almost steely undertone.

• Black (Schorl) – the most common iron-bearing tourmaline, though it is less valued in jewelry.

What makes them unique?

• High color saturation – iron enhances the intensity of the color, giving these tourmalines a rich, luxurious look.

• Transparency – unlike manganese-bearing tourmalines, which are often cloudy, iron-containing specimens can be crystal clear.

• Strong pleochroism – many of these stones change shades depending on the viewing angle.

What about the price?

I won’t sugarcoat it—iron-bearing tourmalines, except for the most vivid blues and greens, are generally less expensive than chromium- or copper-bearing varieties (like Paraiba). But this makes them more accessible, allowing you to wear a natural, richly colored gemstone without breaking the bank.

So if you love deep, intense colors and natural vibrancy, iron-bearing tourmalines are a fantastic find. And while I remain loyal to Paraiba, these gemstones definitely deserve attention!

 

Olga Bachurina,
Co-Founder of Venus in Libra,
Certified by GIA & Gübelin Academy