Starburst Jasper
A variety of Rhyolite
What is Starburst Jasper?
Named after its tan, star-like patterns on a brown background, Starburst Jasper is actually a type of rhyolite. Also sold under the name spider jasper, starburst Jasper can be nicely polished. This stone with striking patterns is mined in Mexico, is usually tumbled, and is regularly cut into cabochons, beads, spheres, and geodes.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Starburst Jasper before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Where to Find Starburst Jasper
Starburst Jasper is a variety of Rhyolite. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find rhyolite in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.
See where to find rhyoliteAlways check the local rules and get the landowner's permission before you collect.
Quick Facts
Physical Properties
- Color
- Brown, red with tan star patterns
- Hardness (Mohs)
- 6
- Rock tumbling
- Tumbles well
- Density
- 2.58 - 2.91 g/cm³
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Starburst Jasper FAQs
How do I identify Starburst Jasper?
Starburst Jasper can be identified by its hardness of 6 on the Mohs scale, Brown color. Look for these key characteristics when examining specimens.
What color is Starburst Jasper?
Starburst Jasper typically appears in Brown, red with tan star patterns. Color can vary depending on impurities and formation conditions.
How hard is Starburst Jasper?
Starburst Jasper has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
