Milarite

A variety of Minerals

Milarite specimen

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.

Applies to all rocks & minerals.

Quick Facts

Physical Properties

Color
Colorless, grayish, tan, pale green, yellowish green, yellow
Hardness (Mohs)
6
Rock tumbling
With care
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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