Topaz rough from Brazil, listed by the seller at 14 grams. The species is a member of the gem-grade silicate family, with a Mohs hardness of 8.
Origin is stated as Brazil; 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.
Heat treatment is standard for commercial material in this species and is not always declared as an enhancement on retail listings. Lot photographs in the original listing should be examined before ordering.
| Species | Topaz |
|---|---|
| Origin | Brazil |
| Weight (stated) | 14 g |
| Mohs hardness | 8 |
| Treatment | Heat (trade standard) |
| Retailer | Price | Stock | Shipping | |
|---|---|---|---|---|
| ◆Gem Rock Auctions | $28 | In stock | Ground | VISIT → |
Aluminum silicate with fluorine and hydroxyl: natural and treated colors, sources, and trade conventions.