Rhyolite
Rhyolite is a rock with the chemical formula SiO2. It has a Mohs hardness of 5-6 and glass to dull luster.
Rhyolite properties
| Type | Rock |
|---|---|
| Chemical formula | SiO2 |
| Mohs hardness | 5-6 |
| Luster | Glass to dull |
| Typical colors | Typically light-colored, ranging from pink to gray, often with banded or mottled patterns |
| Formation | Forms from the rapid cooling of high-silica lava, typically in volcanic eruptions |
| Rarity | 4 / 10 |
Mohs hardness 5–6 — fairly hard
1 · Talc5 · Apatite10 · Diamond
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