Comparison · Metals & Alloys
Brass vs Nickel
Brass and Nickel are easy to confuse because both are metals & alloys. Both sit near Mohs 3.5, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Below is a side-by-side comparison of their properties and the quick tests that separate them.
Key differences between Brass and Nickel
- Both sit near Mohs 3.5, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
- Streak color differs: Brass leaves a yellow-gold to brass streak on unglazed porcelain, Nickel leaves gray.
- Both look metallic, so compare color, tarnish and weight rather than shine.
- They overlap in yellow, but Brass also comes in brown and Nickel also comes in gray.
Brass vs Nickel properties
| Property | Brass | Nickel |
|---|---|---|
| Type | Metals & Alloys | Metals & Alloys |
| Mohs hardness | 3.5 | 4 |
| Luster | metallic | metallic |
| Streak | Yellow-gold to brass | Gray |
| Transparency | opaque | opaque |
| Specific gravity | 8.5 | 8.9 |
| Crystal system | varies | varies |
| Common colors | Yellow gold, Brass yellow, Brown, Tarnished gold | Silver, Gray, Slightly yellow silver |
| Rarity | common | common |
| Typical specimen value | $1–$150+ | $1–$120+ |
Which is more valuable?
Typical specimens of Brass and Nickel trade in a similar range, around $15.
About Brass
Brass is a yellow-gold copper and zinc alloy often used in hardware, decorative objects, instruments, keys, fittings, and jewelry findings.
About Nickel
Nickel is a hard silvery metal used in plating, coins, stainless steel, batteries, magnets, jewelry alloys, and industrial alloys.
Brass vs Nickel FAQ
Is Brass the same as Nickel?
No. Both are metals & alloys, but they are distinct species with different hardness, streak or luster. Both sit near Mohs 3.5, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
How can you tell Brass from Nickel?
Both sit near Mohs 3.5, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Streak color differs: Brass leaves a yellow-gold to brass streak on unglazed porcelain, Nickel leaves gray. Both look metallic, so compare color, tarnish and weight rather than shine.
Which is harder, Brass or Nickel?
Nickel is harder: Mohs 4 against Mohs 3.5 for Brass.
Which is more valuable, Brass or Nickel?
Typical specimens of Brass and Nickel trade in a similar range, around $15.
