Properties
| Category | Minerals |
|---|---|
| Formula | Silica (SiO2) |
| Color | golden to red-brown |
| Mohs scale hardness | 6.5–7 |
| Luster | Silky |
| Specific gravity | 2.64–2.71 |
From the Wikipedia article
Tiger's eye is a chatoyant gemstone that is usually a metamorphic rock with a golden to red-brown colour and a silky lustre. As members of the quartz group, tiger's eye and the related blue-coloured mineral hawk's eye gain their silky, lustrous appearance from the parallel intergrowth of quartz crystals and altered amphibole fibres that have mostly turned into limonite.
Source
Source record: crystal-compendium/tiger-s-eye/minerals.json. Fetched from English Wikipedia by the operator 2 October 2026.
https://en.wikipedia.org/wiki/Tiger%27s_eye — revision id 1367861791. Text and properties from Wikipedia, licensed CC BY-SA 4.0.