Mckinstryite

A variety of Minerals

What is Mckinstryite?

Market Value Factors

Pricing varies for every rock and mineral, so use these universal factors to gauge Mckinstryite 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
Steel gray
Hardness (Mohs)
1.5 - 2.5
Rock tumbling
Not recommended
Density
6.57 g/cm³
Streak
Dark steel-gray

Chemical Properties

Chemical Formula
Ag5-xCu3+xS4 x ≈ 0-0.28
Elements
Ag, Cu, S
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Mckinstryite FAQs

How do I identify Mckinstryite?

Mckinstryite can be identified by its hardness of 1.5 - 2.5 on the Mohs scale, Steel gray color. Look for these key characteristics when examining specimens.

What color is Mckinstryite?

Mckinstryite typically appears in Steel gray. Color can vary depending on impurities and formation conditions.

How hard is Mckinstryite?

Mckinstryite has a hardness of 1.5 - 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.

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