Comparison · Minerals
Calcite vs Goshenite
Calcite and Goshenite are easy to confuse because both are minerals. Goshenite is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Goshenite 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 Calcite and Goshenite
- Goshenite is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Goshenite 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: Calcite is transparent, Goshenite is Transparent.
- They overlap in clear, but Calcite also comes in yellow, orange, blue, green, and pink.
- Well-formed crystals give it away: Calcite is trigonal, Goshenite is Hexagonal.
Calcite vs Goshenite properties
| Property | Calcite | Goshenite |
|---|---|---|
| Type | Minerals | Minerals |
| Mohs hardness | 3 | 7.5–8 |
| Luster | vitreous | Vitreous |
| Streak | White | White |
| Transparency | transparent | Transparent |
| Specific gravity | 2.7 | 2.65–2.8 |
| Crystal system | trigonal | Hexagonal |
| Common colors | Colorless, White, Yellow, Orange, Blue, Green, Pink | Colorless, White |
| Rarity | common | common |
| Typical specimen value | $2–$100+ | $2–$150+ |
Which is more valuable?
Goshenite is usually the more valuable of the two: a typical collector specimen runs about $20 against $15 for Calcite, and premium Goshenite can reach $150 or more.
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.
About Goshenite
Goshenite is the colorless variety of beryl, Be3Al2Si6O18, lacking the trace-element impurities that give other beryl varieties their color. It crystallizes in the hexagonal system as clear, glassy prisms and takes its name from Goshen, Massachusetts, where it was first described. Historically valued for optical use before high-quality glass was widely available, it is today the least sought-after beryl variety among gem buyers.
Calcite vs Goshenite FAQ
Is Calcite the same as Goshenite?
No. Both are minerals, but they are distinct species with different hardness, streak or luster. Goshenite is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Goshenite 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 Calcite from Goshenite?
Goshenite is harder (Mohs 7.5–8) than Calcite (Mohs 3), so Goshenite 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: Calcite is transparent, Goshenite is Transparent. They overlap in clear, but Calcite also comes in yellow, orange, blue, green, and pink.
Which is harder, Calcite or Goshenite?
Goshenite is harder: Mohs 7.5–8 against Mohs 3 for Calcite.
Which is more valuable, Calcite or Goshenite?
Goshenite is usually the more valuable of the two: a typical collector specimen runs about $20 against $15 for Calcite, and premium Goshenite can reach $150 or more.
