| IGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
|---|---|---|---|---|---|
| GRD039MS0 | Rutile | Rutile replacing Brookeite | Arkansas | 0 | Ritter 154, 12 B |
| GRD039NS0 | Rutile | Rutile in Quartz oriented on Hematite, excellent sample. | Brazil | 0 | Ritter 154, 12 B |
| GRD039OS0 | Rutile | Rutile | Virginia | 0 | Ritter 154, 12 B |
| GRD039ZS0 | Cassiterite | Two pieces of Subhedral Cassiterite | Australia | 0 | Ritter 154, 12 C |
| GRD03A0S0 | Cassiterite | One piece of striated subhedral Cassiterite | California | 0 | Ritter 154, 12 C |
| GRD03A1S0 | Cassiterite | Aggregate of subhedral Cassiterite | Bolivia | 0 | Ritter 154, 12 C |
| GRD03BQS0 | Cassiterite | Cassiterite | South Dakota | 0 | Ritter 154, 12 D |
| GRD03BTS0 | Cassiterite | Cassiterite with Mica and Quartz | Australia | 0 | Ritter 154, 12 D |
| GRD03BYS0 | Cassiterite | Granular Cassiterite | Unknown | 0 | Ritter 154, 12 D |
| GRD03MNS0 | Cassiterite | Bolivia | 0 | Vaughan 146, 41 D | |
| GRD03N7S0 | Cassiterite | China | 0 | Vaughan 146, 41 F |