This piece is raw, rough, and completely untreated — exactly as it came from the earth. It’s ideal for collectors who appreciate natural formation, visible host rock context, and authentic turquoise that hasn’t been stabilized or altered. A beautiful display piece for mineral enthusiasts, educators, or anyone who loves the contrast between turquoise and its original limestone matrix.
Weight: 199.89g
Form: Rough, little to no matrix
Origin: Cortez Canyon, Northern Nevada
Treatment: None — 100% natural, never stabilized, never dyed
Hardness: 5–6 Mohs (natural untreated turquoise)
The vivid lime-to-mint green is driven by zinc and iron concentration in the crystal structure — the same geochemistry that makes this material rare. When zinc partially or fully replaces copper in the turquoise structure, the color shifts from blue toward green.
→ Learn about the zinc-driven green color on our Learn page.
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