Boulder Opal Gemstone Pendant – with Fabric Cord

A beautiful Boulder Opal pendant, whose natural ironstone matrix and vibrant opal play of color make it a truly unique natural specimen. The polished surface allows the typical opal reflections – subtle blue, turquoise, green, or rainbow shimmers – to light up with varying intensity depending on the light.
The warm brown tone of the matrix creates an impressive contrast to the iridescent shimmer of the opal, giving the stone depth, character, and organic beauty.

With a size of approx. 26 × 18 mm, the pendant is compact, elegant, and versatile.
The 2.5 mm drill hole makes it suitable for leather cords, omega necklaces, or delicate silver chains.

The included black fabric cord (approx. 80 cm) is soft, pliable, and very comfortable against the skin.
You will receive exactly the Boulder Opal pendant pictured – a color-intensive, authentic natural work of art from Australia.

Product Details

• Gemstone: Boulder Opal – polished natural stone

• Color: Brown matrix with opalescent flashes of color (blue, green, turquoise, or multi-colored depending on the stone)

• Size: approx. 26 × 18 mm

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

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

• Comfort: Soft, flexible & skin-friendly

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

• Unique jewelry: Each matrix and color structure is a naturally grown unique piece

Geological Information

• Mineral class: Oxides / amorphous silicates

• Chemical composition: SiO₂·nH₂O – hydrous silicon dioxide

• Crystal system: Amorphous

• Hardness (Mohs): 5.5 – 6.5

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