| Collection | ABDUG University of Aberdeen, Geological Collections |
| Object Name | Calc-silicate |
| Object Number | ABDUG Rock.7884 |
| Brief Description | Siliceous nodule - "sponge form" in Durness limestone Transformed to diopside, tremolite, calcite assemblage by thermal metamorphism associated with the Beinn an Dubhaich granite; S |
| Place Key | Torrin Quarry, Skye, Inverness-shire, Scotland |
| Aquisition Source | J. Brown, SF |
| Aquisition Date | 01/01/1970 |