Nunderite
Nunderite tumbled
What is Nunderite?
Nunderite is a commercial trade name for the material that originates from New South Wales, Australia, and is reportedly a rock composed of Andalusite quartz and epidote. It is usually sold tumbled or carved into objects like hearts. The name Nunderite reportedly comes from its place of origin, near Nundoora Station in the Australian bush.
Uses & Applications
Nunderite can be polished into a very attractive decorative stone. This material is less commonly found cut for jewelry as a cabochon, in which case it is usually set into items such as brooches, necklaces, and pendants
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Nunderite 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.
Nunderite Localities Map
See where Nunderite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Green, brown
- Hardness (Mohs)
- 6.5 - 7.5
- Density
- 2.65 - 3.5 g/cm³
Chemical Properties
- Chemical Formula
- n{NaFe3+Si2O6} p{KAlSi3O8}
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Nunderite FAQs
How do I identify Nunderite?
Nunderite can be identified by its hardness of 6.5 - 7.5 on the Mohs scale, Green color. Look for these key characteristics when examining specimens.
What color is Nunderite?
Nunderite typically appears in Green, brown. Color can vary depending on impurities and formation conditions.
How hard is Nunderite?
Nunderite has a hardness of 6.5 - 7.5 on the Mohs scale. This gives it moderate hardness.