Comparison · Minerals
Cuprite vs Hematite
Cuprite and Hematite are easy to confuse because both are minerals. Hematite is harder (Mohs 6) than Cuprite (Mohs 3.5–4), so Hematite will scratch Cuprite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not. Below is a side-by-side comparison of their properties and the quick tests that separate them.
Key differences between Cuprite and Hematite
- Hematite is harder (Mohs 6) than Cuprite (Mohs 3.5–4), so Hematite will scratch Cuprite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not.
- Streak color differs: Cuprite leaves a brownish red streak on unglazed porcelain, Hematite leaves red to reddish-brown.
- Both look metallic, so compare color, tarnish and weight rather than shine.
- Cuprite feels noticeably heavier for its size (specific gravity 6.0–6.15 versus 5.3 for Hematite).
- Hold a thin edge to the light: Cuprite is Transparent to nearly opaque, Hematite is opaque.
- They overlap in red and black, but Hematite also comes in gray.
- Well-formed crystals give it away: Cuprite is Cubic, Hematite is trigonal.
Cuprite vs Hematite properties
| Property | Cuprite | Hematite |
|---|---|---|
| Type | Minerals | Minerals |
| Mohs hardness | 3.5–4 | 6 |
| Luster | Adamantine to submetallic or earthy | metallic |
| Streak | Brownish red | Red to reddish-brown |
| Transparency | Transparent to nearly opaque | opaque |
| Specific gravity | 6.0–6.15 | 5.3 |
| Crystal system | Cubic | trigonal |
| Common colors | Red, Dark red, Nearly black | Metallic Gray, Black, Red |
| Rarity | common | common |
| Typical specimen value | $2–$150+ | $2–$50+ |
Which is more valuable?
Cuprite is usually the more valuable of the two: a typical collector specimen runs about $20 against $10 for Hematite, and premium Cuprite can reach $150 or more.
About Cuprite
Cuprite is a copper oxide mineral, Cu2O, notable for its deep red color and status as an important secondary ore of copper. It forms in the oxidized upper zones of copper sulfide deposits, where weathering converts primary copper minerals into oxides and carbonates. Cuprite often occurs alongside native copper, malachite, and azurite, forming a colorful assemblage typical of copper deposit gossans.
About Hematite
Hematite is the most important iron ore mineral. Its name comes from the Greek word for blood, referring to its red streak.
Cuprite vs Hematite FAQ
Is Cuprite the same as Hematite?
No. Both are minerals, but they are distinct species with different hardness, streak or luster. Hematite is harder (Mohs 6) than Cuprite (Mohs 3.5–4), so Hematite will scratch Cuprite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not.
How can you tell Cuprite from Hematite?
Hematite is harder (Mohs 6) than Cuprite (Mohs 3.5–4), so Hematite will scratch Cuprite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not. Streak color differs: Cuprite leaves a brownish red streak on unglazed porcelain, Hematite leaves red to reddish-brown. Both look metallic, so compare color, tarnish and weight rather than shine.
Which is harder, Cuprite or Hematite?
Hematite is harder: Mohs 6 against Mohs 3.5–4 for Cuprite.
Which is more valuable, Cuprite or Hematite?
Cuprite is usually the more valuable of the two: a typical collector specimen runs about $20 against $10 for Hematite, and premium Cuprite can reach $150 or more.
