Clinozoisite skarn - Banchory
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Fact sheet
Description: 

This contact metamorphic rock comes from the Bridge of Feugh, near Banchory, Grampian, Scotland. The rock was originally a Proterozoic-age sediment that became metamorphosed during the Grampian orogeny. It was then subjected to heat and fluids during the intrusion of local Caledonian plutons to produce a skarn.

The thin section contains finely intergrown diopside (pyroxene), actinolite (amphibole) and quartz. There are several accessary minerals (notably titanite) exhibiting characteristic lozenge shapes and very high relief in plane polarised light. Clinozoisite is also present, characterised by medium relief and a single strong cleavage in plane polarised light, but striking patchy blue and yellow colours when viewed between crossed polars.

In Place
In Time
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Location description: 
Bridge of Feugh, near Banchory, Grampian, Scotland
Accuracy:
Location precision: 
Poor
Timescale:
Timescale: 
Cambrian
Ma = Millions of years ago
In Focus
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Type: 
metamorphic
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