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ChrysopraseVSJadeite
Side-by-side comparison of physical properties, fluorescence, and crystal system — to identify by observation.
- ◎ is higher in Jadeite, giving a numerical distinguishing point.
- ◎ is higher in Jadeite, giving a numerical distinguishing point.
- ◎ is higher in Jadeite, 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.
| Property | A: Chrysoprase | B: Jadeite | Verdict |
|---|---|---|---|
| Refractive index (RI) | 1.530–1.540 | 1.652–1.688 | B higher |
| Specific gravity (SG) | 2.58–2.64 | 3.30–3.38 | B higher |
| Mohs hardness | 6.5–7.0 | 6.5–7.0 | Nearly equal |
| Birefringence | 0.004 | 0.012 | B higher |
| Dispersion | — | — | — |
| Property | A: Chrysoprase | B: Jadeite |
|---|---|---|
| Crystal system | 三方晶系（潜晶質） | 単斜晶系（多結晶） |
| Pleochroism | — | — |
| Chelsea filter | — | inert |
| UV (long-wave) | — | inert |
| UV (short-wave) | inert | inert |
◆Jadeite shows fibrous interlocking grains, an 'orange-peel' polished surface, refractometer reading near 1.66, and SG ~3.33; chrysoprase is uniform microcrystalline chalcedony with no fiber structure, refractometer near 1.54, and SG ~2.6.
Distinguishing tools
Tools that decide between Chrysoprase and Jadeite 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.