Ironstone fragment with drill marks

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Author name
Land of Iron
Source
Sketchfab
Polygon Count
516,770
Release Date
2019-02-06
License
CC BY 4.0
agisoftphotoscan

Asset Overview

Found in a spoil heap at Esk Valley Mine near Grosmont. In mid-19th century mining the hole for the gunpowder to blast the stone was made by 'jumping' a chisel ended metal bar into the rock face to create a deep hole. As technology advanced rotary drills were brought in to make the job much easier.