Laumontite
A variety of Zeolite

What is Laumontite?
Laumontite is usually pink, brown, or white in appearance, though its purest form is while it's white. These minerals are usually found in basaltic rocks, which are dark black igneous rocks that are a result of cooling lava. Laumontite turns into a chalky material called leonardite if left to dehydrate.
Uses & Applications
Laumontite is primarily used for mineral collections but also makes for a good chemical filter. Some studies have shown that laumontite has the potential to treat aqueous nuclear waste.
Healing Properties
Laumontite is believed to be a powerful stone in the practice of Reiki, harmonizing the body's energy and kick-starting physical and emotional healing. Excessive bloating may benefit from laumontite, and it might encourage active toxin removal. The stone's particles are supposedly so tiny that they can infiltrate the body's cells, which is how they remove toxic components.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Laumontite 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.
Laumontite Localities Map
See where Laumontite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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Quick Facts
Physical Properties
- Color
- Colorless to pink, white, gray, yellowish, brownish, golden brown
- Hardness (Mohs)
- 3.5 - 4
- Density
- 2.25 g/cm³
- Streak
- White
- Luster
- Pearly, Vitreous
- Crystal System
- Monoclinic
Chemical Properties
- Chemical Formula
- CaAl2Si4O12 · 4H2O
- Elements
- Al, Ca, H, O, Si
Also Known As

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Laumontite FAQs
How do I identify Laumontite?
Laumontite can be identified by its hardness of 3.5 - 4 on the Mohs scale, Colorless to pink color, Pearly, Vitreous luster, Monoclinic crystal system. Look for these key characteristics when examining specimens.
What color is Laumontite?
Laumontite typically appears in Colorless to pink, white, gray, yellowish, brownish, golden brown. Color can vary depending on impurities and formation conditions.
How hard is Laumontite?
Laumontite has a hardness of 3.5 - 4 on the Mohs scale. This gives it moderate hardness.
