Opal specimen sparks of color in sandy iron stone

A unique Australian Boulder Opal specimen mined in the south-western region of Queensland. The specimen features a distinctive sandy ironstone matrix with natural opal occurring in unusual, rounded tube-like formations running through the rock. The contrast between the earthy ironstone and the delicate opal formations creates a beautiful and intriguing natural pattern. Highly polished to reveal its unique structure, this is a particularly unusual and attractive example of Queensland Boulder Opal. A one-of-a-kind natural specimen, perfect for collectors who appreciate the unusual geological formations and natural beauty of Australian opal. Specifications Stone: Natural Boulder Opal Format: Specimen polished Weight: 0.27 kg Dimensions: 80 x 55 x 65 mm Origin: South West Queensland