Earth's Mineral Masterpieces

Specimens · Science · Interactive

Explore Collection

Mohs Hardness Scale

click to test scratch resistance

👆 Select a mineral

Streak Test Simulator

Drag a mineral across the streak plate

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Drag the specimen onto the plate to see its streak color.

Compare Minerals

Crystal Habits

shapes found in nature

Cubic

Hexagonal

Prismatic

Rhombohedral

Notable Localities

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