Comparison · Carbonates vs Minerals
Rhodochrosite vs Rhodonite
Rhodochrosite and Rhodonite are easy to confuse. Rhodonite is harder (Mohs 6) than Rhodochrosite (Mohs 3.75), so Rhodonite will scratch Rhodochrosite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not. Below is a side-by-side comparison of their properties and the quick tests that separate them.
Key differences between Rhodochrosite and Rhodonite
- Rhodonite is harder (Mohs 6) than Rhodochrosite (Mohs 3.75), so Rhodonite will scratch Rhodochrosite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not.
- They overlap in pink, but Rhodochrosite also comes in red, orange, and brown and Rhodonite also comes in black.
- Well-formed crystals give it away: Rhodochrosite is trigonal, Rhodonite is triclinic.
Rhodochrosite vs Rhodonite properties
| Property | Rhodochrosite | Rhodonite |
|---|---|---|
| Type | Carbonates | Minerals |
| Mohs hardness | 3.75 | 6 |
| Luster | vitreous | vitreous |
| Streak | White | White |
| Transparency | translucent | translucent |
| Specific gravity | 3.65 | 3.6 |
| Crystal system | trigonal | triclinic |
| Common colors | Pink, Rose red, Red, Orange, Brown | Pink, Rose, Pink with black veins |
| Rarity | uncommon | uncommon |
| Typical specimen value | $15–$900+ | $5–$200+ |
Which is more valuable?
Rhodochrosite is usually the more valuable of the two: a typical collector specimen runs about $120 against $30 for Rhodonite, and premium Rhodochrosite can reach $900 or more.
About Rhodochrosite
Rhodochrosite is a manganese carbonate famous for its rose-pink to deep red color. It occurs as transparent rhombohedral crystals as well as banded pink-and-white masses, and it is popular with both collectors and lapidaries.
About Rhodonite
Rhodonite is a pink manganese silicate often featuring black veins of manganese oxide. It's the official gem of Massachusetts.
Rhodochrosite vs Rhodonite FAQ
Is Rhodochrosite the same as Rhodonite?
No. Rhodochrosite is a carbonate while Rhodonite is a mineral. Rhodonite is harder (Mohs 6) than Rhodochrosite (Mohs 3.75), so Rhodonite will scratch Rhodochrosite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not.
How can you tell Rhodochrosite from Rhodonite?
Rhodonite is harder (Mohs 6) than Rhodochrosite (Mohs 3.75), so Rhodonite will scratch Rhodochrosite and not the other way round. A steel knife blade (Mohs 5.5) scratches it; a copper coin does not. They overlap in pink, but Rhodochrosite also comes in red, orange, and brown and Rhodonite also comes in black. Well-formed crystals give it away: Rhodochrosite is trigonal, Rhodonite is triclinic.
Which is harder, Rhodochrosite or Rhodonite?
Rhodonite is harder: Mohs 6 against Mohs 3.75 for Rhodochrosite.
Which is more valuable, Rhodochrosite or Rhodonite?
Rhodochrosite is usually the more valuable of the two: a typical collector specimen runs about $120 against $30 for Rhodonite, and premium Rhodochrosite can reach $900 or more.
