Milarite
A variety of Minerals
What is Milarite?
Optical Properties
- Refractive Index
- 1.529-1.560
- Birefringence
- 0.000-0.011
- Optical Character
- Uniaxial negative
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Milarite 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.
Milarite Localities Map
See where Milarite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colorless, grayish, tan, pale green, yellowish green, yellow
- Hardness (Mohs)
- 6
- Streak
- White
Chemical Properties
- Chemical Formula
- K2Ca4Al2Be4Si24O60 · H2O
- Elements
- Al, Be, Ca, H, K, O, Si
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Milarite FAQs
How do I identify Milarite?
Milarite can be identified by its hardness of 6 on the Mohs scale, Colorless color. Look for these key characteristics when examining specimens.
What color is Milarite?
Milarite typically appears in Colorless, grayish, tan, pale green, yellowish green, yellow. Color can vary depending on impurities and formation conditions.
How hard is Milarite?
Milarite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
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