Wollastonite skarn - Omey Island
 >View Microscope
Fact sheet
Description: 

This carbonate rich contact metamorphic rock or skarn comes from Omey Island a tidal island 500m from the coast of Galway, Ireland. The Island is mostly formed of porphyritic granite and while few live on the island today, it has been inhabited for long periods of time. A ruined medieval Parrish church, Teampaill Feichin, was excavated from the deep sand covering parts of the island in 1981, and stands on the site of an earlier abbey said to have been founded by Saint Feichín.

The thin section exibits coarse grained calcite with lamellar strain twins, large poikilitic garnet with multiple inclusions. The pyroxenoid wollastonite is also abundant in this thin section, and appears in fibres and blades, particularly in the lower left hand quarter. Vesuvianite is also reported in this thin section.

In Place
In Time
infoImage: 
Location description: 
Omey Island County Connemara, Ireland
Accuracy:
Location precision: 
Moderate
Timescale:
Timescale: 
Devonian
Ma = Millions of years ago
In Focus
Theme:

Theme:

What\
Type:
Type: 
metamorphic
What\
Category:

Category:

What\
Rock-forming minerals:

Rock forming mineral:

What\