- Pumice sample approximately 1" (3cm) in size
- Ideal for demonstrating the effect of vesicles on rock density - pumice will float in water due to internal air pockets
- Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements
- Glassy texture is the result of swift cooling in mid-air
- Specimen comes in clear labeled and barcoded bag for ideal storage
- Pumice sample approximately 1" (3cm) in size
- Ideal for demonstrating the effect of vesicles on rock density - pumice will float in water due to internal air pockets
- Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements
- Glassy texture is the result of swift cooling in mid-air
- Specimen comes in clear labeled and barcoded bag for ideal storage