Color-Change Garnet — Large Example

$6,105.00
Chemical FormulaPy₃₅-₄₅Sp₁₅Gr₄₀-₅₀
Crystal SystemCubic
Mohs Hardness7.25
Specific Gravity3.75
LusterVitreous
TransparencyTransparent

Madagascar’s color-change garnets perform a trick more dramatic than alexandrite: green to blue-green in daylight, red to purple in incandescent light. The mechanism is chromium ab…

Only 2 available — a rare find.

SKU: TC-GEM-0438
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Description

Science and beauty are rarely in conflict. Here they converge. Madagascar’s color-change garnets perform a trick more dramatic than alexandrite: green to blue-green in daylight, red to purple in incandescent light. The mechanism is chromium absorption, identical to alexandrite’s, but in a garnet matrix that intensifies the saturation. This discovery (1990s) upended the gem market’s assumptions about garnet’s color range.

This specimen originates from Bekily, Anosy Region, Madagascar, one of the world’s most significant localities for this type of material. Collectors and scientists have drawn from this region for generations, and for good reason: the combination of geological conditions here produces specimens of exceptional quality and clarity.

Every specimen is unique. Photographs approximate the visual experience, but the real thing — its weight, its luster under a raking light, the way it catches the corner of your eye — can only be experienced directly.

Formation

This specimen formed through geological processes operating over timescales that dwarf human history. The specific combination of chemistry, temperature, pressure, and time at this locality produced material of exceptional quality that makes it a valued addition to any serious collection.

Locality

Color-Change Garnet — Large Example from Bekily, Anosy Region, Madagascar. This locality is known for producing specimens of exceptional quality.

Collector Notes

Photograph with a neutral grey background to capture true color.