Boulder Opal Matrix Tumbled Stone Jewelry Pendant - Gemstone A Quality #5248

Gemstone Tumbled Boulder Opal Matrix Pendant – with Fabric Cord

An extraordinary Boulder Opal Matrix pendant with characteristic, natural grain and subtle opal inclusions.
The matrix is the iron-containing surrounding rock of the boulder opal (mostly limonite or sandstone), which gets its unmistakable appearance through finely distributed opal veins or shimmering areas.
Carefully cut and polished, this pendant shows the natural structure, depth, and color variety of the rock – each piece is a hand-picked unique piece of nature.

With a size of approx. 27 × 22 mm (L × W), the pendant is discreet and comfortable to wear.
The drilled hole of approx. 2.5 mm is ideal for leather cords, omega necklaces, or fine silver chains.

The included black fabric cord (approx. 80 cm) is soft, pliable, and offers comfortable wear.
You will receive the Boulder Opal Matrix pendant shown – a naturally beautiful piece of jewelry with interesting grain and subtle elegance.

Product Details

• Gemstone: Boulder Opal Matrix (tumbled, untreated)

• Color: Brown to ocher with possible bluish opal inclusions

• Size: approx. 27 × 22 mm (L × W)

• Drilled hole: approx. 2.5 mm – suitable for leather cords, omega necklaces & fine silver chains

• Cord: Black fabric cord, approx. 80 cm long

• Wearing comfort: Soft, skin-friendly & pliable

• Scope of delivery: Pendant shown including fabric cord

Geological Information

• Mineral class: Oxides / Opal variety in ironstone matrix (limonite)

• Chemical composition: SiO₂·nH₂O in iron-containing matrix

• Crystal system: Amorphous (non-crystalline)

• Hardness (Mohs): 5.5 – 6.5

• Density: approx. 2.0 – 2.4 g/cm³

Locations

Boulder opal and its matrix mainly come from Queensland (Australia).
The rock forms in iron-rich layers where fine opal deposits develop – each matrix shows a unique pattern.

Special Features

• Genuine, untreated Boulder Opal Matrix tumbled stone

• Natural grain with occasional opal inclusions

• Polished surface – elegant & distinctive

• Ready to wear with fabric cord

• Hand-picked natural unique piece