Basalt
Hunza valley float · Listed 14/Aug/2026
For sale
Collector notes
Dark, dense, a few vesicles. Fine-grained lava. (sample)
Specimen facts
- Kind
- rock
- Hardness
- 5–6
- Luster
- Dull to vitreous
- Colors
- Dark gray to black
Fine-grained mafic volcanic rock. The most common volcanic rock on Earth.
Dense and dark. Vesicles (gas holes) are common in lava flows.
Collector
danish
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