Native copper is a classic metallic mineral recognized by its distinctive reddish color and high density. It typically forms as jagged wires, dendritic growths, or solid masses in volcanic rocks and oxidized ore zones.
Is this copper?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch copper with a known reference. Copper sits at Mohs 2.5-3 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Copper leaves a copper-red streak.
- 3Read the lusterHold the specimen under a strong light. Copper typically shows a metallic luster.
- 4Match the color rangeCompare against the expected color range: copper-red, reddish-brown.
- 5Look at form & habitCrystal system: cubic. Typical habit: massive, dendritic, arborescent, wire, plates.
Often confused with
Copper vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside copper
Minerals reported to co-occur with copper. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Cu
- Mohs hardness
- 2.5-3
- Density
- 8.9 g/cm³
- Colors
- Streak
- Copper-red
- Luster
- Metallic
- Transparency
- Opaque
- Crystal system
- Cubic
- Crystal habit
- Massive, Dendritic, Arborescent, Wire, Plates
- Cleavage
- None
- Rarity
- Common
- Uses
- Collector, Scientific Research
- Host rock
- Basaltic Lavas, Hydrothermal Veins, Sedimentary Rocks
- Typical price
- $10-100 for small specimens, $200+ for large crystals or wire aggregates
Where rockhounds find copper
89 mapped spotsClassic worldwide localities
- Keweenaw Peninsula, Michigan, USA
- Corocoro, Bolivia
- Tsumeb, Namibia
- Dzhezkazgan, Kazakhstan
- Broken Hill, Australia
U.S. states with copper
Each link opens a state-specific list of mapped rockhounding spots that produce copper.
Field-hunting tip
Look in basaltic lavas, hydrothermal veins, sedimentary rocks country — that is the host setting where copper typically forms. If you start seeing cuprite, malachite, azurite in float, you are in the right ground. Field specimens usually show a massive, dendritic, arborescent, wire, plates habit, so train your eye for that shape before scanning the outcrop. In the U.S., the densest reported localities are in Nevada, Utah, Arizona — start trip planning there.
Common questions
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Find copper on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
