Wairakite
A variety of Minerals
What is Wairakite?
Wairakite is a zeolite mineral with an analcime structure but containing a calcium ion. The chemical composition is Ca8(Al16Si32O96)•16H2O. It is named for the location of its discovery in Wairakei, North Island, New Zealand, by Alfred Steiner in 1955. The first finds were in hydrothermally altered rhyolitic tuffs, ignimbrites and volcaniclastic rocks. The mineral has since been found in metamorphic rocks and in geothermal areas. It was most likely first successfully synthesized in a laboratory in 1970.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Wairakite 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.
Wairakite Localities Map
See where Wairakite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colorless to white
- Hardness (Mohs)
- 5.5 - 6
- Streak
- White
Chemical Properties
- Chemical Formula
- Ca(Al2Si4O12) · 2H2O
- Elements
- Al, Ca, H, O, Si
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Wairakite FAQs
How do I identify Wairakite?
Wairakite can be identified by its hardness of 5.5 - 6 on the Mohs scale, Colorless to white color. Look for these key characteristics when examining specimens.
What color is Wairakite?
Wairakite typically appears in Colorless to white. Color can vary depending on impurities and formation conditions.
How hard is Wairakite?
Wairakite has a hardness of 5.5 - 6 on the Mohs scale. This gives it moderate hardness.
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