mineral

Pyrite in Matrix (Healers Gold / Pyrite Egg)

Iron Disulfide (FeS2) with Magnetite/Hematite matrix

AI-generated identification · may be incorrect

Hardness: 6-6.5 on Mohs scale; Color: brassy gold mixed with dark grey to black; Luster: metallic; Crystal system: isometric (pyrite); Specific gravity: approx. 4.9-5.2; Streak: greenish-black to brownish-black.

Hardness: 6-6
Color: brassy gold mixed with dark grey to black
Luster: metallic

Identified October 3, 2026More mineral →

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Physical properties

Formation & geological history

Formed via hydrothermal vein deposition or replacement processes where iron- and sulfur-rich fluids interact with host rock, frequently found in metamorphic or sedimentary environments.

Uses & applications

Popular as a carved lapidary item (egg, sphere), ornamental display piece, meditation and metaphysical stone, and a collectible mineral.

Geological facts

Known colloquially as 'Fool's Gold' due to its superficial resemblance to real gold. When struck against steel or flint, pyrite creates bright sparks, giving it its name derived from the Greek word 'pyr' meaning fire.

Field identification & locations

Recognized by its heavy heft, bright brassy metallic sheen contrasting with dark rocky host matrix, and cool metallic feel; common localities include Peru, Spain, the USA, and China.