| IGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
|---|---|---|---|---|---|
| GRD031AS0 | Titanite | One large crystal of Sphene showing excellent parting due to twinning. | Australia | 0 | Ritter 154, 11 E |
| GRD031BS0 | Titanite | Approximately 30 pieces of Sphene, primarily fractured pieces of green Sphene crystals. | Brazil | 0 | Ritter 154, 11 E |
| GRD036IS0 | Titanite | Burminco Bulk | Canada | 0 | Ritter 154, 11 G |
| GRD036YS0 | Titanite | Three fragments of Sphene and one grain mount from UCLA mineral collection | Unknown | 0 | Ritter 154, 11 H |