Noreena Jasper
Noreena Jasper is silicified mudstone (jasperoid), SiO2-cemented mudstone with iron oxides. In the hand, it rates 6.5 to 7 on the Mohs scale, and it runs brick red and mustard yellow. Crisp angular patchwork of brick red, mustard, and cream divided by sharp seams, like aerial views of outback desert in stone.
The geology.
Noreena Jasper carries the formula SiO2-cemented mudstone with iron oxides. It belongs to the not applicable (rock) system. It is classified as silicified mudstone (jasperoid).
It sits at 6.5 to 7 on the Mohs scale. The surface reads vitreous to satiny on polish. Light behaviour is opaque. Specific gravity runs 2.6 to 2.8. The streak is white to reddish. It breaks with conchoidal to uneven fracture.
Crisp angular patchwork of brick red, mustard, and cream divided by sharp seams, like aerial views of outback desert in stone.
You will most often meet it as cabochons, slabs or tumbled.
The origins.
Noreena Downs station area, Pilbara region, Western Australia; silicified Proterozoic mudstones.
On value, the database notes: mid-range; clean high-contrast patterns are sought by cutters.
Traditional associations.
In energy work traditions, associated with endurance and connection to ancient land.
People buy on this language, so it belongs on the page. It belongs under the facts, though, not over them.
Spotting the real thing.
Crisp angular patchwork of brick red, mustard, and cream divided by sharp seams, like aerial views of outback desert in stone.
Not faked; name occasionally misapplied to other red-yellow Australian jaspers.
| Looks like | How to tell them apart |
|---|---|
| Mookaite | Mookaite colors blend in smooth gradients; Noreena patterns are angular with sharp boundaries |
| Picture jasper | Picture jasper paints soft landscape scenes; Noreena is bold geometric color blocks |
| Polychrome jasper | Polychrome (Madagascar) is rounded flowing color zones; Noreena is Australian angular mosaic |
At-home tests.
You can run every one of these at a kitchen table. Good light matters more than gear when you are looking at noreena jasper.
| Test | What you should see |
|---|---|
| Scratch check | Scratches glass (Mohs 6.5 to 7) |
| Acid check | No fizz with vinegar |
| By eye | Angular color blocks with sharp contacts |
Stop short of anything that leaves a mark. A gemologist can answer the rest without damaging the stone.
Care & handling.
At 6.5 to 7 on the Mohs scale it handles careful wear but scratches against quartz and dust. Store it separately and take rings off before rough work.
It breaks with conchoidal to uneven fracture, which is worth knowing before you set it or drop it.
Skip the ultrasonic. Lukewarm water, mild soap and a soft cloth handle routine cleaning without risk.
A deeper look.
Extended detail on composition, sourcing, authentication and market value.
The physical record
The formula on record is SiO2-cemented mudstone with iron oxides. Crystal system: Not applicable (rock). Specific gravity: 2.6 to 2.8. Streak: White to reddish. Cleavage and fracture: Conchoidal to uneven fracture.
How it reaches the market
Noreena Downs station area, Pilbara region, Western Australia; silicified Proterozoic mudstones.
What it gets confused with
Mookaite: Mookaite colors blend in smooth gradients; Noreena patterns are angular with sharp boundaries. Picture jasper: Picture jasper paints soft landscape scenes; Noreena is bold geometric color blocks. Polychrome jasper: Polychrome (Madagascar) is rounded flowing color zones; Noreena is Australian angular mosaic.
What it is worth
Mid-range; clean high-contrast patterns are sought by cutters.
Where buyers get caught
Not faked; name occasionally misapplied to other red-yellow Australian jaspers.
One more thing
The mudstone it formed from is over two billion years old, among the oldest rocks regularly cut for jewelry.
An education-first guide.
We do not carry noreena jasper. This page exists because the question comes up and the honest answer is worth writing down, whether or not there is anything here to sell you.
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