Polished Boulder Opal Thumbnail XX014 Swiss Quartz the typical frosted cores due

the typical frosted cores due to rapid crystallisation can be observed

and that is meaningful to the observer

Weight: 168g

From a recent 2020 find

Weight: 1515g

Polished Boulder Opal Thumbnail XX014 Swiss Quartz the typical frosted cores dueLocality: Yowah opal field, Paroo Shire, Queensland, Australia Height: 1. 6x1. 3 cm Weight: 1. 51g You are getting this exact piece. Disclaimer Product colour may differ due to lighting conditions during photography, or different screen resolution. All efforts have been made to ensure photos are as true to product as possible Measurements are approximation 1 to 2cm Crystals may have natural inclusions, nicks and cracks. These will be highlighted to