| IGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
|---|---|---|---|---|---|
| GRD00JKS0 | Pahoehoe | vesicular, glassy, aphryic basalt; 1988 flow | Hawaii | 0 | Ritter 154, 16 I |
| GRD00JKS1 | Pahoehoe | vesicular, glassy, aphryic basalt; 1988 flow | Hawaii | 0 | Ritter 154, 16 I |
| GRD02R9S0 | Pahoehoe | Two large pieces. Smooth interior, indicative of a lava tube or a cast | 0 | Ritter 154, 16 I | |
| GRD03ZFS0 | Pahoehoe | Pahoehoe | Iceland | 0 | Ritter 154, 16 I |
| GRD042HS0 | Pahoehoe | folded, vesicular pahoehoe fragment | likely from Hawaii | 0 | Ritter 154, 16 Q |