Garnet (almandine) vs Jadeite jade
Garnet (almandine) is harder (Mohs 7–7.5) than Jadeite jade (Mohs 6.5–7), so it resists scratching better; Jadeite jade is softer than quartz dust (7) and needs more care in everyday rings.
Garnet (almandine) has the higher refractive index (1.790 vs 1.66), which a refractometer can use to separate them.
Garnet (almandine) is denser (SG 4.05 vs 3.34); a garnet (almandine) of the same size weighs about 21% more.
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| Property | Garnet (almandine) | Jadeite jade |
|---|---|---|
| Species / material | Garnet | Jadeite (pyroxene) |
| Mohs hardness | 7–7.5 | 6.5–7 |
| Refractive index | 1.790 | 1.66 |
| Specific gravity | 4.05 | 3.34 |
| Crystal system | Cubic | Monoclinic (aggregate) |
| Birefringence | None (isotropic) | Not usually measurable |
Values are typical ranges from standard gemmological references; individual stones can vary.
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