Comparison · Sedimentary Rocks
Breccia vs Travertine
Breccia and Travertine are easy to confuse because both are sedimentary rocks. 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 Breccia and Travertine
- 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: Breccia leaves a variable; test individual minerals streak on unglazed porcelain, Travertine leaves white.
- Luster is different: Breccia is varies while Travertine is vitreous to dull, sometimes pearly.
- Hold a thin edge to the light: Breccia is opaque, Travertine is Opaque, translucent in thin layers.
- They overlap in multicolored, but Travertine also comes in white and brown.
Breccia vs Travertine properties
| Property | Breccia | Travertine |
|---|---|---|
| Type | Sedimentary Rocks | Sedimentary Rocks |
| Mohs hardness | 3.5 | 3–4 |
| Luster | varies | Vitreous to dull, sometimes pearly |
| Streak | Variable; test individual minerals | White |
| Transparency | opaque | Opaque, translucent in thin layers |
| Specific gravity | 2.4 | 2.4–2.7 |
| Crystal system | varies | — |
| Common colors | Various | White, Cream, Tan, Beige, Banded brown |
| Rarity | common | common |
| Typical specimen value | $1–$75+ | $1–$75+ |
Which is more valuable?
Typical specimens of Breccia and Travertine trade in a similar range, around $10.
About Breccia
Breccia is rock composed of broken fragments in a matrix.
About Travertine
Travertine is a dense, banded sedimentary rock formed by the rapid precipitation of calcium carbonate from mineral-rich spring water, often at hot springs or along streams fed by limestone aquifers. Unlike most limestone, which forms slowly on ocean floors, travertine can build up quickly around a spring's mouth as dissolved carbon dioxide escapes the water and calcite drops out of solution. Its layered, sometimes porous texture makes it a distinctive and widely used building stone.
Breccia vs Travertine FAQ
Is Breccia the same as Travertine?
No. Both are sedimentary rocks, but they are distinct rock types 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 Breccia from Travertine?
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: Breccia leaves a variable; test individual minerals streak on unglazed porcelain, Travertine leaves white. Luster is different: Breccia is varies while Travertine is vitreous to dull, sometimes pearly.
Which is harder, Breccia or Travertine?
They are about equally hard, both near Mohs 3.5.
Which is more valuable, Breccia or Travertine?
Typical specimens of Breccia and Travertine trade in a similar range, around $10.
