Comparison · Metals & Alloys
Lead vs Zinc
Lead and Zinc are easy to confuse because both are metals & alloys. Zinc is harder (Mohs 2.5) than Lead (Mohs 1.5), so Zinc will scratch Lead and not the other way round. A fingernail (Mohs 2.5) scratches it easily. Below is a side-by-side comparison of their properties and the quick tests that separate them.
Key differences between Lead and Zinc
- Zinc is harder (Mohs 2.5) than Lead (Mohs 1.5), so Zinc will scratch Lead and not the other way round. A fingernail (Mohs 2.5) scratches it easily.
- Streak color differs: Lead leaves a lead gray streak on unglazed porcelain, Zinc leaves gray.
- Both look metallic, so compare color, tarnish and weight rather than shine.
- Lead feels noticeably heavier for its size (specific gravity 11.34 versus 7.14 for Zinc).
Lead vs Zinc properties
| Property | Lead | Zinc |
|---|---|---|
| Type | Metals & Alloys | Metals & Alloys |
| Mohs hardness | 1.5 | 2.5 |
| Luster | metallic | metallic |
| Streak | Lead gray | Gray |
| Transparency | opaque | opaque |
| Specific gravity | 11.34 | 7.14 |
| Crystal system | varies | varies |
| Common colors | Bluish gray, Dark gray, Dull silver | Bluish silver, Gray, Dull silver |
| Rarity | common | common |
| Typical specimen value | $1–$80+ | $1–$100+ |
Which is more valuable?
Typical specimens of Lead and Zinc trade in a similar range, around $10.
About Lead
Lead is a very dense, soft, dull gray metal. It may appear in weights, shielding, old pipes, fishing sinkers, bullets, solder, or native lead specimens.
About Zinc
Zinc is a bluish-silver metal used in galvanizing steel, die-cast objects, batteries, coins, hardware, and brass production.
Lead vs Zinc FAQ
Is Lead the same as Zinc?
No. Both are metals & alloys, but they are distinct species with different hardness, streak or luster. Zinc is harder (Mohs 2.5) than Lead (Mohs 1.5), so Zinc will scratch Lead and not the other way round. A fingernail (Mohs 2.5) scratches it easily.
How can you tell Lead from Zinc?
Zinc is harder (Mohs 2.5) than Lead (Mohs 1.5), so Zinc will scratch Lead and not the other way round. A fingernail (Mohs 2.5) scratches it easily. Streak color differs: Lead leaves a lead gray streak on unglazed porcelain, Zinc leaves gray. Both look metallic, so compare color, tarnish and weight rather than shine.
Which is harder, Lead or Zinc?
Zinc is harder: Mohs 2.5 against Mohs 1.5 for Lead.
Which is more valuable, Lead or Zinc?
Typical specimens of Lead and Zinc trade in a similar range, around $10.
