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
- Colors
- dark gray to black
Basalt is the common dark fine-grained volcanic rock.
Dark fine-grained lava rock, may have vesicles.
Collector
danish
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