Australian Rough Boulder Opal, Raw Matrix Specimen – 41ct weight #74

Australian Boulder Opal Raw Matrix small specimen stone

Country of Origin: Queensland, Australia

10-point scale of mineral hardness: 5.5 – 6.0 (10 – Hard, 1 soft)

Treatment: Untreated, natural raw state

Quantity: 1 Boulder Opal Specimen. You will receive the exact gemstone shown in the photos. We have tried to capture the beautiful colour tones as best we can in a photograph.

Size: approx 1.8cm x 2.1cm x 2.7cm

Weight: 7.8 grams, 41 carats

Care has been taken to ensure that weights and measurements are as accurate as possible, however please do note that these are only approximate.

These specimens are in their natural raw form and shedding of small crystals is normal. Natural inclusions, cracks and pockets are all visible and all part of the natural stone. Please handle with extra care.

These stones have been photographed with water. Being wet brings out the maximum colour.

Boulder opal is a rock that contains thin seams and patches of opal surrounded by or attached to its natural host rock.