Comparison · Semi-Precious Stones vs Minerals
Garnet vs Hessonite
Garnet and Hessonite are easy to confuse. Both sit near Mohs 7, 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 Garnet and Hessonite
- Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
- Hold a thin edge to the light: Garnet is transparent, Hessonite is Transparent to translucent.
- They overlap in red, orange, and brown, but Garnet also comes in green and purple and Hessonite also comes in yellow.
- Well-formed crystals give it away: Garnet is cubic, Hessonite is Cubic.
Garnet vs Hessonite properties
| Property | Garnet | Hessonite |
|---|---|---|
| Type | Semi-Precious Stones | Minerals |
| Mohs hardness | 7 | 6.5–7 |
| Luster | vitreous | Vitreous to resinous |
| Streak | White | White |
| Transparency | transparent | Transparent to translucent |
| Specific gravity | 3.8 | 3.5–3.65 |
| Crystal system | cubic | Cubic |
| Common colors | Red, Orange, Green, Purple, Brown | Orange-brown, Cinnamon, Yellow-orange, Reddish brown |
| Rarity | common | common |
| Typical specimen value | $10–$3000+ | $2–$150+ |
Which is more valuable?
Garnet is usually the more valuable of the two: a typical collector specimen runs about $100 against $20 for Hessonite, and premium Garnet can reach $3000 or more.
About Garnet
Garnet is a group of silicate minerals that share similar crystal structures. While red garnets are most common, they occur in every color except blue.
About Hessonite
Hessonite is a warm orange-brown to reddish-brown variety of grossular garnet, Ca3Al2(SiO4)3, colored by trace iron and manganese, and long prized in South Asian gem traditions under the Sanskrit name gomedh. Its slightly greasy internal luster and swirling, treacle-like inclusions, often described as a scotch-in-water effect, set it apart from other orange garnets and gemstones. It belongs to the calcium-aluminum garnet subgroup rather than the calcium-iron subgroup that includes andradite.
Garnet vs Hessonite FAQ
Is Garnet the same as Hessonite?
No. Garnet is a semi-precious stone while Hessonite is a mineral. Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
How can you tell Garnet from Hessonite?
Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Hold a thin edge to the light: Garnet is transparent, Hessonite is Transparent to translucent. They overlap in red, orange, and brown, but Garnet also comes in green and purple and Hessonite also comes in yellow.
Which is harder, Garnet or Hessonite?
They are about equally hard, both near Mohs 7.
Which is more valuable, Garnet or Hessonite?
Garnet is usually the more valuable of the two: a typical collector specimen runs about $100 against $20 for Hessonite, and premium Garnet can reach $3000 or more.
