Huge Gem  Crystal Boulder Opal 106.4 ct
Huge Gem  Crystal Boulder Opal 106.4 ct
xx579 side
xx579 back
Huge Gem  Crystal Boulder Opal 106.4 ct

Crystal Boulder Opal Specimen 106.4 ct

USD $15,700

In stock

Natural Solid Untreated Australian Crystal Boulder Opal Polished Stone
Weight: 106.4 carats
Dimensions: 62x27x10 mm
Source: Winton, QLD, Australia
Size and weight are approximate

SKU: XX579

Crystal Boulder Opal Specimen 

This is truely a one of a kind collectors piece opal. This Crystal Boulder Opal is deal for a Pendant, or simply for an avid collection.  Natural Solid Untreated Genuine Crystal Boulder Opal Specimen Loose Stone From Winton, QLD, Australia

It is almost impossible to find Crystal Boulder Opal Specimen of this size and quality. This is such an outstanding example of sandstone based Boulder Opal from Winton.

This opal was discovered in the Diamantina mining region of Winton, about 4 hours drive West of the Winton township. This is the most furtherest Western point of opal mining and exploration in Queensland in a very remote, harsh landscape. Read more about the Winton mining region here:

What are Crystal Boulder Opals?

Crystal Boulder Opal (commonly referred to as P!pe Crystal Boulder Opal) is a unique type of boulder opal that is sandstone based, apposed to the regular, more well known ironstone based boulder opal. Sandstone is more fragile, brittle and lighter in comparison to the ironstone. The precious opal itself is crystal and lighter in colour. Further read more about Crystal Boulder Opals here:

Crystal Boulder Opal discoveries are often unintentional during the search for Ironstone Boulder Opals in Boulder Opal mining. Unlike the latter, they are found in Sandstone and are often located in pockets as opposed to being embedded inside large boulders that require smashing open with a sledgehammer

There are very few opal sellers that have a catalogue of high quality Crystal Boulder Opals like ours at Opal Galaxy. Shop our amazing selection of Crystal Boulder Opals today!


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Size and weight are approximate.
Please check the provided weight and dimensions carefully.
We are unable to offer additional photos for size reference.
We recommend drawing the dimensions on paper for size reference of an opal.

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7 day return and refund policy.
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We offer a lifetime guarantee for natural cracks that may form in our opals. There is a very low chance that this can happen, however occasionally it might. Our guarantee excludes any opals sold with existing fractures.
Please view our Terms and Conditions.

Australian Opals do not change their appearance after exposure to heat / climate / humidity / water.
An Australian Opal will not be damaged when exposed to light chemicals such as dishwashing detergent or hand soap. You should not however expose your opal to hasher chemicals such as bleach or ammonia.
They are however susceptible to cracking if knocked hard enough. If wearing your opal set in a ring you should always be careful that it is not knocked during physical activities.
If undertaking some form of sport or manual labour, please take off your ring or other opal jewelry so that it is not damaged.

Crystal Boulder Opals, or commonly referred to as P!pe Crystal Boulder Opals are a type of opal found in boulder opal mines in Winton.

These opals are found in pockets of sandstone within the boulder opal mine; referred to as ‘crystal boulder’. Read more here about crystal boulder opals