The facts
What bruneau Jasper actually is
Bruneau Jasper is classified as jasper (silicified rhyolite), with the composition SiO₂ with iron oxide. It crystallises in the cryptocrystalline aggregate system.
Colour comes from iron oxides give the brick red, cream and brown of the classic orbicular 'egg' pattern, which is also what a laboratory looks at when it is asked whether a colour is natural.
Refractive index 1.53–1.54 (spot). Specific gravity around 2.55–2.70. Cleavage: none. Those three numbers separate it from most of what imitates it.
Where bruneau Jasper comes from
Bruneau Jasper is produced at Bruneau Canyon, Owyhee County, Idaho, USA.
That is the whole list. A single source makes supply fragile and makes any claim of a second origin worth questioning.
How bruneau Jasper is treated
Untreated. The original claim is on land now largely closed to collecting, so supply is from old stock — which is exactly why lookalike Chinese jaspers are widely sold under the name.
Treatment changes value, sometimes by a multiple, so it belongs in the description before the price and not after the sale.
What bruneau Jasper is confused with
In the trade bruneau Jasper is most often mistaken for, or substituted by, Willow Creek jasper, Morrisonite, Ocean jasper or Poppy jasper.
The separation is rarely a matter of opinion: refractive index 1.53–1.54 (spot) and specific gravity 2.55–2.70 settle most of it in a minute, and magnification settles the rest.
What bruneau Jasper is used for
Demand for bruneau Jasper comes from jewellery, mineral collecting and decorative objects, which is why one price per carat never covers it.
We quote each application in the unit that trade actually buys in, by the carat, by the specimen or by the piece.
Durability and care
Bruneau Jasper is 6.5–7 on the Mohs scale, with none cleavage.
With no cleavage plane to worry about, the practical limit is abrasion rather than breakage, and it takes daily wear well.
Warm water, mild soap and a soft brush. Avoid ultrasonic cleaners on anything fracture-filled, stabilised, dyed or visibly included.
What bruneau Jasper costs
As a guide, bruneau Jasper trades around Old-stock rough 80–400 USD/kg; cabochons 40–250 USD.
That is a range, not a quote. Colour, size, clarity, cut and origin move the figure a long way inside it, and the only honest price is one given against a specific stone. Send us what you need and we will price it.
Questions
Is bruneau Jasper treated, and how?
Untreated. The original claim is on land now largely closed to collecting, so supply is from old stock — which is exactly why lookalike Chinese jaspers are widely sold under the name.
Where does bruneau Jasper come from?
Bruneau Canyon, Owyhee County, Idaho, USA. That is the only commercial source.
Is bruneau Jasper hard enough to wear every day?
Yes. At 6.5–7 on the Mohs scale with no cleavage plane, it handles daily wear well. The practical limit is gradual abrasion rather than chipping.
How much does bruneau Jasper cost?
Indicatively Old-stock rough 80–400 USD/kg; cabochons 40–250 USD. Colour, size, clarity and origin move the price a long way within that, so treat it as a range and ask for a quote against a specific stone.
What is bruneau Jasper confused with?
Most often Willow Creek jasper, Morrisonite, Ocean jasper and Poppy jasper. A refractive index of 1.53–1.54 (spot) and a specific gravity near 2.55–2.70 separate it quickly.
What is bruneau Jasper used for besides jewellery?
mineral collecting and decorative objects. Each of those trades buys it in a different form and a different unit.
Related stones
Looking for bruneau jasper?
Tell us the size, the quality and what it is for. We source it, photograph it and quote it — with the locality named.
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