Large Boulder Opal Specimen — Australian Collector Piece ghost crystal point A compact 21mm rutilated quartz

A compact 21mm rutilated quartz sphere at 13g

In practice it gives your collection a home

Rutilated quartz contains rutile

The stainless steel chain resists tarnish well

or a general sense of unease

Large Boulder Opal Specimen — Australian Collector Piece ghost crystal point A compact 21mm rutilated quartzThis Boulder Opal specimen is a genuinely large piece, 130 by 65mm and weighing 548g, showing off a vivid play of colour across a grounding matrix of natural ironstone. It blends natural beauty with a real sense of geological history, remarkable both energetically and visually. So how does a piece like this actually form? Mined in Queensland, Australia, each boulder opal develops over millions of years as tiny fissures in ironstone fill with silica