Gemstone Pendant made of Boulder Opal – with fabric cord

A fascinating pendant made of Australian Boulder Opal, which impresses with its unique play of colors and natural rock matrix. The polished stone shows the typical vibrant shimmer of the opal – fine blue, green, or rainbow flashes that change depending on the light – embedded in the brown, earthy ironstone matrix, which makes every boulder opal an absolutely distinctive natural work of art.

With a size of approx. 28 × 18 mm, the pendant appears pleasantly compact, elegant, and yet expressive.
The 2.5 mm drill hole is perfectly suited for leather cords, delicate silver chains, or omega necklaces.

The included black fabric cord (approx. 80 cm) is soft, supple, and ensures excellent wearing comfort.
You will receive exactly the pictured boulder opal pendant – a vibrant, color-playing unique piece from the nature of Australia.

Product Details

• Gemstone: Boulder Opal – polished natural stone

• Color: Brown with iridescent play of colors (blue, green, colorful depending on the stone)

• Size: approx. 28 × 18 mm

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

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

• Wearing comfort: Soft, flexible & skin-friendly

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

• Unique jewelry: Each Boulder Opal has its very own, unique play of colors

Geological Information

• Mineral class: Oxides / amorphous silicates

• Chemical composition: SiO₂·nH₂O – hydrous silicon dioxide

• Crystal system: Amorphous

• Hardness (Mohs): 5.5 – 6.5

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