Jadeite jade vs Pearl
Jadeite jade is harder (Mohs 6.5–7) than Pearl (Mohs 2.5–4.5), so it resists scratching better; Pearl is softer than quartz dust (7) and needs more care in everyday rings.
Jadeite jade has the higher refractive index (1.66 vs 1.53–1.69), which a refractometer can use to separate them.
Jadeite jade is denser (SG 3.34 vs 2.71); a jadeite jade of the same size weighs about 23% more.
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| Property | Jadeite jade | Pearl |
|---|---|---|
| Species / material | Jadeite (pyroxene) | Organic (nacre) |
| Mohs hardness | 6.5–7 | 2.5–4.5 |
| Refractive index | 1.66 | 1.53–1.69 |
| Specific gravity | 3.34 | 2.71 |
| Crystal system | Monoclinic (aggregate) | Organic |
| Birefringence | Not usually measurable | Not applicable |
Values are typical ranges from standard gemmological references; individual stones can vary.
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