- TITLE
- Oval implement of porphyry
- EXTERNAL ID
- QZP40_2471_VOLXII_P271A
- DISTRICT
- Shetland
- DATE OF IMAGE
- 1876
- PERIOD
- 1780s
- SOURCE
- Highland Libraries
- ASSET ID
- 31641
- KEYWORDS
- knives
tools
stones
rocks
blades
implements

An example of a flat oval implement or knife of porphyry. Porphyry is a fine-grained igneous rock which contains isolated crystals. The rock is usually red or purple but this example, we are told in the book, was of a greyish colour. The edge was sharp all the way round.
This illustration was taken from 'Proceedings of the Society of Antiquaries of Scotland. Vol XII, Part I' (1876-77)