Black Tourmaline Donut - Pi Disc Jewelry Necklace Pendant AA Quality 30mm

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

This energy donut made of genuine black tourmaline (schorl) is an exquisite piece of jewelry crafted from high-quality natural stone. Its deep black luster and fine, smooth surface give the donut a simple, elegant appeal. Each stone is a handmade unique piece with individual structure and natural grain.

Since every gemstone in nature is unique, no two pieces are alike – each piece possesses its very own color nuance and surface. This creates an authentic natural product with individual character.

The classic donut shape (Pi disc) stands for harmony, balance, and simple elegance. In combination with the dark depth of tourmaline, it creates a stylish energy donut that can be worn on any occasion.

The gemstone donut has a diameter of approx. 30 mm and comes with a black, waxed cotton cord. The cord is about 80 cm long, soft, supple, and ensures comfortable wear.

Product Details

Gemstone: Black Tourmaline (Schorl)

Shape: Donut (Pi disc)

Size: approx. 30 mm

Surface: Polished

Cord: Soft, waxed cotton cord, approx. 80 cm

Wearing comfort: Soft and supple

Color: Deep black with natural luster

Workmanship: Handmade – each piece is unique

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

Delivery: You will receive the pictured gemstone donut pendant with fabric cord

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 cord through the opening and wear

Can be combined with other energy donuts or necklaces

High-quality natural stone in a polished finish

Ideal as an elegant piece of jewelry or a special gift