Number Eight turquoise comes from a mine in Elko County, Nevada that has been closed since the 1970s. That fact alone shapes everything about this material: supply is fixed, quality varies widely in the secondary market, and the specific look that defines it — a golden-brown to black spider-web matrix over blue-green ground — can't be sourced new.

What Makes It Distinctive

The spider-web matrix on Number Eight is what collectors and jewelers seek. A well-formed web — fine, evenly distributed veining that covers the stone without overpowering the ground color — is the mark of high-quality Number Eight material. Stones with a strong, well-defined web command significantly higher prices than those with irregular or sparse patterning.

The ground color ranges from a clear blue to blue-green. The matrix is typically a warm golden-brown to near-black depending on the iron oxide content of the host rock. The combination is specific enough that experienced buyers can identify it on sight — and specific enough that imitations and mislabeled material circulate in the market.

Natural vs. Stabilized Number Eight

Most Number Eight material available today is stabilized. The stone tends toward softer, more porous formation, which means natural Number Eight that's hard enough for fine jewelry use is uncommon and commands a significant premium. Stabilized Number Eight gives you the look of the material with improved durability for cutting and setting.

We label every stone in our inventory clearly. If it's stabilized Number Eight, it's listed as such. If natural material is available, the listing says natural and the price reflects it. Don't accept "Number Eight" from any supplier without knowing the treatment status.

Working With It

Number Eight cuts and polishes well when stabilized. The spider-web pattern comes to life under a high polish — don't stop short of a full finish. It pairs naturally with silver, gold, and copper metalwork; the warm tones in the matrix tie to warmer metal colors particularly well.

For settings, the matrix patterning means no two stones will look the same in a finished piece. That's worth naming in your product descriptions. Collectors buying Number Eight jewelry are buying for the pattern — tell them what they're getting.

Pricing Reality

Genuine, quality Number Eight runs higher than most comparable turquoise because the supply is genuinely finite. The mine closed over fifty years ago. What exists in the market is what was cut from existing rough — there's no new material coming. That's not a sales pitch; it's the reality of working with material from a closed mine. Price accordingly when you're using it in finished pieces, and make sure your buyers understand why.