| Name | Lava Stone |
| Class | Silicates |
| Category | Volcanic rock |
| Crystal system | Amorphous |
| Chemical composition | Mainly silicon dioxide (SiO₂), with iron, magnesium, calcium, sodium, and potassium oxides |
| Hardness (Mohs scale) | 5 to 5.5 |
| Transparency | Opaque |
| Geographical origin | Iceland, Italy, Mexico, Indonesia, United States, Hawaii |















