Igneous Rocks

Formation: Formed over millions of years by the gradual crystallisation of magma deep within the Earth's crust. encroaching igneous stone.

Uses: Because of its strength and visual attractiveness, it is frequently utilised in construction for statues, monuments, countertops, and structures. used as crushed stone for road construction, as well as flooring and decorative elements. 

Appearance: Usually consisting of mica, feldspar, and quartz grains, this coarse-grained rock has a speckled look. Shades of pink, grey, black, and white are only a few examples of the vast variety of colours.

Locations in Ireland: Typically located in areas like the Mourne and Wicklow mountains.

Unusual facts:  1. Granite is among the planet's oldest rocks, having existed for billions of years. 

2. Its durable nature and ability to offer a constant, smooth glide make it a popular choice for curving stone surfaces. 

3. Some types of granite can  release tiny amounts of radon gas.

Formation: formed from magma extrusions or quickly cooling lava that  flows on the surface of the Earth.

Uses: Used in the production of basalt fibre, aesthetic stones, building materials, and road materials.

Appearance: Dark coloured rock with fine grains; usually black to dark grey in colour. There could be tiny mineral crystals visible.

Locations In Ireland: Antrim Coast; Lough Neagh Basin; Giant's Causeway, County Antrim; and certain areas of County Down.

Unusual facts: 1. The hexagon-shaped basalt columns of Giant's Causeway were created millions of years ago by volcanic activity.

 2. Because basalt retains heat well, it is frequently used in hot stone massage therapy.

3. Its durability and functionality make it a popular material for artwork and sculptures