Catapleiite
A variety of Minerals
What is Catapleiite?
Catapleiite (Na2ZrSi3O9•2H2O) is a dimorph of Gaidonnayite rarely found by itself. Its name derives from the greek words “κατα” (kata) and “πλειον” (pleion) meaning “with more” as it is mostly accompanied by a number of rare minerals. When pure it is colorless, but it is most often seen as a tan, brownish-red, light yellow, dark brown, flesh red or orangish in color. It is mostly found on Låven Island, Norway. Its hardness on the Mohs Scale is around 5 1/2-6. It has a monoclinic crystal system.
Optical Properties
- Refractive Index
- 1.590-1.629
- Birefringence
- 0.039
- Optical Character
- Biaxial positive
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Catapleiite 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.
Catapleiite Localities Map
See where Catapleiite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Dark brown, reddish brown, flesh red, yellowish red,colourless, light grey, beige to tan, light yellow, orange, light blue
- Hardness (Mohs)
- 5.5 - 6
- Density
- 2.77 g/cm³
- Streak
- White to pale yellow
Chemical Properties
- Chemical Formula
- Na2Zr(Si3O9) · 2H2O
- Elements
- H, Na, O, Si, Zr
Also Known As
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Catapleiite FAQs
How do I identify Catapleiite?
Catapleiite can be identified by its hardness of 5.5 - 6 on the Mohs scale, Dark brown color. Look for these key characteristics when examining specimens.
What color is Catapleiite?
Catapleiite typically appears in Dark brown, reddish brown, flesh red, yellowish red,colourless, light grey, beige to tan, light yellow, orange, light blue. Color can vary depending on impurities and formation conditions.
How hard is Catapleiite?
Catapleiite has a hardness of 5.5 - 6 on the Mohs scale. This gives it moderate hardness.
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