Quartzite

Quartzite is a coarse-grained metamorphic rock derived from sandstone.

Heat and pressure combine to fuse grains of quartz sand that make up the composition of quartzite.

It has a uniform texture (non-foliated) and is very hard, 7 on the Mo's Scale.

Quartzite is resistant to weathering. 

Quartzite is usually white or grey and sometimes pink to red if iron oxides are present as in this example.


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