Garnet (almandine) vs Citrine
Garnet (almandine) and Citrine have similar hardness (Mohs 7–7.5).
Garnet (almandine) has the higher refractive index (1.790 vs 1.544–1.553), which a refractometer can use to separate them.
Garnet (almandine) is denser (SG 4.05 vs 2.65); a garnet (almandine) of the same size weighs about 53% more.
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| Property | Garnet (almandine) | Citrine |
|---|---|---|
| Species / material | Garnet | Quartz |
| Mohs hardness | 7–7.5 | 7 |
| Refractive index | 1.790 | 1.544–1.553 |
| Specific gravity | 4.05 | 2.65 |
| Crystal system | Cubic | Trigonal |
| Birefringence | None (isotropic) | 0.009 |
Values are typical ranges from standard gemmological references; individual stones can vary.
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