Iroishi Checker

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Pyrope GarnetVSRhodolite Garnet

Side-by-side comparison of physical properties, fluorescence, and crystal system — to identify by observation.

Pyrope Garnet
A
パイロープガーネット
Rhodolite Garnet
B
ロードライトガーネット
Physical propertiesPROPERTIES
PropertyA: Pyrope GarnetB: Rhodolite GarnetVerdict
Refractive index (RI)1.730–1.7601.745–1.760Overlap
Specific gravity (SG)3.65–3.873.74–3.94Overlap
Mohs hardness7.0–7.57.0–7.5Nearly equal
Birefringence
Dispersion
Optics & fluorescenceOPTICS & UV
PropertyA: Pyrope GarnetB: Rhodolite Garnet
Crystal system等軸晶系等軸晶系
Pleochroism
Chelsea filterredred / pink
UV (long-wave)inertinert
UV (short-wave)inertinert
ObservationOBSERVATION

Pyrope is purer red with less purple modifier; rhodolite is brighter and more purplish-pink. Refractive index is slightly higher in rhodolite.

Color categoriesCATEGORIES
A: Pyrope Garnet
Red / pink
B: Rhodolite Garnet
Red / pink / Purple
A: Pyrope Garnet — full entryB: Rhodolite Garnet — full entryMeasure your own stone and identify it
DISTINGUISHING TOOLS · 3 ITEMS

Distinguishing tools

Tools that decide between Pyrope Garnet and Rhodolite 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.