Norrishite

A variety of Minerals

What is Norrishite?

Market Value Factors

Pricing varies for every rock and mineral, so use these universal factors to gauge Norrishite 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
black to brownish black
Hardness (Mohs)
2.5
Rock tumbling
Not recommended
Density
3.255 g/cm³
Streak
light brown

Chemical Properties

Chemical Formula
KLiMn3+2(Si4O10)O2
Elements
K, Li, Mn, O, Si
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Norrishite FAQs

How do I identify Norrishite?

Norrishite can be identified by its hardness of 2.5 on the Mohs scale, black to brownish black color. Look for these key characteristics when examining specimens.

What color is Norrishite?

Norrishite typically appears in black to brownish black. Color can vary depending on impurities and formation conditions.

How hard is Norrishite?

Norrishite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.

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