The National Geological Materials Collection (NGMC) includes the core, palaeontology and petrology collections.
Onshore boreholes, including hydrocarbon, mining, stratigraphical, geotechnical.
Offshore boreholes, vibrocores, gravity cores, grab samples.
UK Continental Shelf (offshore) hydrocarbon wells.
Material collections are described in the metadata system.
Many items are individually located in their own section in the GeoIndex.
If all else fails, specimens can be located using the registers together with the locality card index. The Leeds Registers and Keyworth Registers are by 50k map sheet and can provide a useful entry point, but the London and Scottish Registers and the Museum and Donations Registers do not.
The card index may be searched by locality name, donor, seller, and county. It will list all appropriate Register entries, and each must be searched. A given entry should include the range of specimen registration numbers, any identifications, locality & horizon details, together with the collector/donor and the date of collection/donation.
The card indexes and registers should be consulted through the Collections staff in either Keyworth or Edinburgh.
If you have any queries, please contact the NGDC. They will be happy to help with any searches.