COMPARE GUIDE
Hessonite (Cinnamon Stone)VSSpessartite Garnet
Side-by-side comparison of physical properties, fluorescence, and crystal system — to identify by observation.
Decisive distinctionsDECISIVE
- ◎ is higher in Spessartite Garnet, giving a numerical distinguishing point.
- ◎ is higher in Spessartite Garnet, giving a numerical distinguishing point.
Note: properties whose numeric ranges do not overlap are auto-extracted. Both are measurable with a refractometer or heavy-liquid bath.
Physical propertiesPROPERTIES
| Property | A: Hessonite (Cinnamon Stone) | B: Spessartite Garnet | Verdict |
|---|---|---|---|
| Refractive index (RI) | 1.738–1.745 | 1.795–1.815 | B higher |
| Specific gravity (SG) | 3.61–3.68 | 4.12–4.20 | B higher |
| Mohs hardness | 7.0–7.5 | 7.0–7.5 | Nearly equal |
| Birefringence | — | — | — |
| Dispersion | — | — | — |
Optics & fluorescenceOPTICS & UV
| Property | A: Hessonite (Cinnamon Stone) | B: Spessartite Garnet |
|---|---|---|
| Crystal system | 等軸晶系 | 等軸晶系 |
| Pleochroism | — | — |
| Chelsea filter | inert | inert |
| UV (long-wave) | inert | inert |
| UV (short-wave) | inert | inert |
ObservationOBSERVATION
◆nclusions instead.
Color categoriesCATEGORIES
A: Hessonite (Cinnamon Stone)
Yellow / orange
B: Spessartite Garnet
Yellow / orange
DISTINGUISHING TOOLS · 2 ITEMS
Distinguishing tools
Tools that decide between Hessonite (Cinnamon Stone) and Spessartite Garnet in practice.
Note: this page is auto-generated from published GIA / CGL reference values. Individual stones, treatments, and synthetics may fall outside these ranges. For a definitive identification, consult an accredited gem laboratory.