Paua Shell
A variety of Nacre
What is Paua Shell?
Found only in the seas around New Zealand, paua Shell is a gem-quality mineral that comes from its eponymous mollusk. The material can seem dull from one side, but on the other side, it shines with marvelous metallic colors. The shells are sometimes polished and sold whole, but they're also used for various souvenirs and decorative objects.
Discover Values
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Paua Shell 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.
Paua Shell Localities Map
See where Paua Shell is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Composition of Paua Shell
Aragonite, macromolecules, proteins, sugars
Quick Facts
Physical Properties
- Color
- Blue, green, pink, purple, silver, black
- Hardness (Mohs)
- 3.5
- Density
- 2.7 - 2.89 g/cm³
- Streak
- Black
- Luster
- Pearly, Greasy
- Crystal System
- Orthorhombic, Trigonal
Chemical Properties
- Chemical Formula
- CaCO3
- Elements
- Ca, C, O
Also Known As
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Paua Shell FAQs
How do I identify Paua Shell?
Paua Shell can be identified by its hardness of 3.5 on the Mohs scale, Blue color, Pearly, Greasy luster, Orthorhombic, Trigonal crystal system. Look for these key characteristics when examining specimens.
What color is Paua Shell?
Paua Shell typically appears in Blue, green, pink, purple, silver, black. Color can vary depending on impurities and formation conditions.
How hard is Paua Shell?
Paua Shell has a hardness of 3.5 on the Mohs scale. This gives it moderate hardness.
What is the composition of paua shell of Paua Shell?
Aragonite, macromolecules, proteins, sugars