Black Tourmaline Donut - PI Disc Jewelry Necklace Pendant AA Quality 40mm #2072

Energy Donut (Pi Disc) made of Black Tourmaline (Schorl) including Fabric Band

This energy donut made of genuine black tourmaline (schorl) is an elegant piece of jewelry in absolute A-quality. The polished natural stone shows a deep black luster with fine, natural structures and a smooth surface. Each donut is a handmade unique piece that impresses with its simple elegance and natural expressiveness.

Since each stone in nature is unique, no two pieces are alike. Slight differences in grain, luster, or structure make each piece an individual companion with its own character.

The classic donut shape (Pi disc) stands for harmony and balance. In combination with the strong black of the tourmaline, a stylish energy donut is created that combines timeless simplicity with natural depth.

The gemstone donut has a diameter of approx. 40 mm and comes with a black, waxed cotton band. The band is about 80 cm long, soft and pliable, and provides high wearing comfort.

Product Details

Gemstone: Black Tourmaline (Schorl)

Shape: Donut (Pi Disc)

Size: approx. 40 mm

Quality: A-quality

Surface: Polished

Band: Soft, waxed cotton band, approx. 80 cm

Wearing comfort: Soft and pliable

Color: Deep black with natural luster

Workmanship: Handmade – each piece is unique

Origin: Brazil, Madagascar, Pakistan (depending on availability)

Delivery: You will receive the gemstone donut pendant shown with a fabric band

Chemical Composition

Chemical Formula: NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Mineral Class: Silicates (Cyclosilicates – Tourmaline group)

Elements: Sodium (Na), Iron (Fe), Aluminum (Al), Boron (B), Silicon (Si), Oxygen (O), Hydrogen (H)

Hardness: 7–7.5 on the Mohs scale

Density: approx. 3.1–3.3 g/cm³

Application and Notes

Simply thread the fabric band through the opening and wear

Can be combined with other energy donuts or necklaces

High-quality, polished natural stone

Ideal as an elegant piece of jewelry or a special gift