Ruby (corundum) rough from Madagascar, listed by the seller at 32 grams. The species is a member of the gem-grade silicate family, with a Mohs hardness of 9.
Origin is stated as Madagascar; commercial rough from this region is described in the trade as exhibiting characteristic colorzonation and inclusion patterns. Faceting.com reproduces the seller's stated origin without independent verification.
The seller declares no treatment or enhancement. Lot photographs in the original listing should be examined before ordering.
| Species | Ruby (corundum) |
|---|---|
| Origin | Madagascar |
| Weight (stated) | 32 g |
| Mohs hardness | 9 |
| Treatment | None declared |
| Retailer | Price | Stock | Shipping | |
|---|---|---|---|---|
| ◆Rio Grande | $784 | In stock | Ground | VISIT → |
| Kingsley North | $815 | In stock | Ground | VISIT → |
Ruby and sapphire: aluminum oxide of Mohs 9, with sources, treatments, and trade conventions.