Comparison · Minerals
Beryl vs Calcite
Beryl and Calcite are easy to confuse because both are minerals. Beryl is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Beryl will scratch Calcite and not the other way round. A copper coin (Mohs 3.5) scratches it, but a fingernail does not. Below is a side-by-side comparison of their properties and the quick tests that separate them.
Key differences between Beryl and Calcite
- Beryl is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Beryl will scratch Calcite and not the other way round. A copper coin (Mohs 3.5) scratches it, but a fingernail does not.
- Hold a thin edge to the light: Beryl is Transparent to translucent, Calcite is transparent.
- They overlap in green, blue, pink, yellow, and clear, but Calcite also comes in orange.
- Well-formed crystals give it away: Beryl is Hexagonal, Calcite is trigonal.
Beryl vs Calcite properties
| Property | Beryl | Calcite |
|---|---|---|
| Type | Minerals | Minerals |
| Mohs hardness | 7.5–8 | 3 |
| Luster | Vitreous | vitreous |
| Streak | White | White |
| Transparency | Transparent to translucent | transparent |
| Specific gravity | 2.63–2.92 | 2.7 |
| Crystal system | Hexagonal | trigonal |
| Common colors | Green (emerald), Blue (aquamarine), Pink (morganite), Yellow (heliodor), Colorless (goshenite) | Colorless, White, Yellow, Orange, Blue, Green, Pink |
| Rarity | common | common |
| Typical specimen value | $2–$150+ | $2–$100+ |
Which is more valuable?
Beryl is usually the more valuable of the two: a typical collector specimen runs about $20 against $15 for Calcite, and premium Beryl can reach $150 or more.
About Beryl
Beryl is a beryllium aluminum cyclosilicate, Be3Al2Si6O18, that crystallizes in the hexagonal system as six-sided prisms. Pure beryl is colorless, but trace elements produce a family of well-known gem varieties, including green emerald, blue-green aquamarine, and pink morganite. It typically forms in granite pegmatites, where slow cooling allows large, well-formed crystals to develop.
About Calcite
Calcite is one of the most common minerals on Earth, found in sedimentary, metamorphic, and igneous rocks. It's the primary component of limestone and marble.
Beryl vs Calcite FAQ
Is Beryl the same as Calcite?
No. Both are minerals, but they are distinct species with different hardness, streak or luster. Beryl is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Beryl will scratch Calcite and not the other way round. A copper coin (Mohs 3.5) scratches it, but a fingernail does not.
How can you tell Beryl from Calcite?
Beryl is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Beryl will scratch Calcite and not the other way round. A copper coin (Mohs 3.5) scratches it, but a fingernail does not. Hold a thin edge to the light: Beryl is Transparent to translucent, Calcite is transparent. They overlap in green, blue, pink, yellow, and clear, but Calcite also comes in orange.
Which is harder, Beryl or Calcite?
Beryl is harder: Mohs 7.5–8 against Mohs 3 for Calcite.
Which is more valuable, Beryl or Calcite?
Beryl is usually the more valuable of the two: a typical collector specimen runs about $20 against $15 for Calcite, and premium Beryl can reach $150 or more.
