Boulder Opal Gemstone Pendant – with Fabric Cord

A beautiful Boulder Opal pendant, captivating with its natural matrix and vibrant play of color. The polished stone showcases the characteristic opal flashes – fine blue, green, or rainbow glints that change with the light, giving the stone a fascinating depth.
The warm, brown ironstone matrix provides a harmonious contrast, making each Boulder Opal a truly unique natural piece.

With a size of approx. 25 × 15 mm, the pendant is pleasantly prominent yet compact, and its clean lines give it an elegant and balanced look.
The 2.5 mm hole is ideal for leather cords, delicate silver chains, or omega necklaces.

The included black fabric cord (approx. 80 cm) is soft, pliable, and very comfortable to wear.
You will receive exactly the Boulder Opal pendant pictured – an inspiring natural work of art full of depth and colorful vibrancy.

Product Details

• Gemstone: Boulder Opal – polished natural stone

• Color: Brown matrix with shimmering opal reflections (blue, green, or multicolored, depending on the stone)

• Size: approx. 25 × 16 mm

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

• Cord: Black fabric cord, approx. 80 cm

• Comfort: Soft, flexible & skin-friendly

• Scope of delivery: Pictured Boulder Opal pendant including fabric cord

• Unique jewelry: Every matrix, every color vein, every play of light is unique

Geological Information

• Mineral Class: Oxides / amorphous silicates

• Chemical Composition: SiO₂·nH₂O – hydrated silicon dioxide

• Crystal System: Amorphous

• Hardness (Mohs): 5.5 – 6.5

• Main Occurrence: Australia (Queensland – classic Boulder Opal region)