Slate mining. Worker using a digger to carry a slab of slate from an underground chamber at a slate mine. Slate is a fine-grained metamorphic rock that has very distinct cleavage planes. This makes it very easy to split into sheets. It is sawn out of the rock face as large slabs and taken by truck to a mill where it is split and cut into smaller sizes. Its principal use is to make roofing tiles,although it is also used to make large objects such as optical benches and billiard tables | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Landmann, Patrick |
Bildgröße: | 3650 px × 2405 px |
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