Podcast
Questions and Answers
What colour can granite be?
What colour can granite be?
- Black (correct)
- Grey (correct)
- Pink (correct)
- Cream (correct)
- All of the above (correct)
Granite is an extrusive rock.
Granite is an extrusive rock.
False (B)
What mineral is commonly found in granite?
What mineral is commonly found in granite?
Quartz, feldspar, and mica
What is the texture of granite?
What is the texture of granite?
Where is granite found in Ireland?
Where is granite found in Ireland?
What colour is marble?
What colour is marble?
What is marble formed from?
What is marble formed from?
What is marble used for?
What is marble used for?
Where is quartzite found?
Where is quartzite found?
Quartzite is extremely hard.
Quartzite is extremely hard.
What is sandstone formed from?
What is sandstone formed from?
Where is sandstone found?
Where is sandstone found?
Limestone is soluble.
Limestone is soluble.
Basalt has large crystals.
Basalt has large crystals.
What are the hexagonal shapes formed in the Giant's Causeway?
What are the hexagonal shapes formed in the Giant's Causeway?
Flashcards
Granite
Granite
A coarse-grained intrusive rock formed from slowly cooling magma.
Intrusive rocks
Intrusive rocks
Rocks formed from magma that cools slowly underground.
Formation of granite
Formation of granite
Granite forms when molten magma pushes into the crust and cools slowly.
Quartz
Quartz
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Feldspar
Feldspar
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Mica
Mica
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Uses of granite
Uses of granite
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Location of granite examples
Location of granite examples
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Marble
Marble
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Texture of marble
Texture of marble
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Color varieties of marble
Color varieties of marble
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Uses of marble
Uses of marble
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Quartzite
Quartzite
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Formation of quartzite
Formation of quartzite
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Uses of quartzite
Uses of quartzite
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Location of quartzite examples
Location of quartzite examples
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Sandstone
Sandstone
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Formation of sandstone
Formation of sandstone
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Uses of sandstone
Uses of sandstone
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Location of sandstone examples
Location of sandstone examples
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Limestone
Limestone
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Formation of limestone
Formation of limestone
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Properties of limestone
Properties of limestone
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Uses of limestone
Uses of limestone
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Location of limestone examples
Location of limestone examples
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Basalt
Basalt
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Formation of basalt
Formation of basalt
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Uses of basalt
Uses of basalt
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Location of basalt examples
Location of basalt examples
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Study Notes
Granite
- Colour: A range of colours, including black, grey, pink, and cream
- Texture: Coarse grained
- Formation: An intrusive rock formed when molten magma pushes its way into the Earth's crust, cools, and hardens under the surface. The slow cooling process creates large crystals, including quartz, feldspar, and mica.
- Use: Used in everyday products like kitchen countertops due to its hardness and durability.
- Example: Found in the Mourne Mountains, Ireland.
- Key characteristic: Intrusive rock formed below the surface of the Earth.
Marble
- Colour: White, red, green, or black
- Texture: Smooth
- Formation: Formed when limestone is exposed to intense heat or pressure, often by geological occurrences like movement of tectonic plates and magma contact.
- Use: Used to create monuments, floor tiles, fireplaces, and other decorative items.
- Examples: Found in County Antrim (white), County Cork (red), Connemara (green), County Galway (green) and County Kilkenny (black).
- Permeability - A characteristic that allows water to pass through.
Quartzite
- Colour: White or grey
- Texture: Granular (grainy)
- Formation: Formed when sandstone is subjected to great heat or pressure due to plate movement, or contact with molten magma.
- Use: Used in counter tops, road chippings, and glass production. High hardness makes it durable.
- Examples: Croagh Patrick in County Mayo and the Great Sugarloaf in County Wicklow.
- Key characteristic: A metamorphic rock that is extremely hard.
Sandstone
- Colour: Reddish/brown
- Texture: Coarse grained
- Formation: Formed from sand that has been transported and deposited in layers, eventually compressed and cemented together by pressure.
- Use: Common building material and used in patios.
- Examples: Found in MacGillycuddy's Reeks in County Kerry and the Galtee Mountains in the south of Ireland.
Limestone
- Colour: Grey
- Texture: Coarse grained
- Formation: Formed from the accumulated deposits of shells and skeletons of marine creatures, compressed, cemented and hardened over millions of years in shallow seas.
- Characteristic: Permeable and soluble.
- Use: Used for monuments, buildings, and cement production.
- Example: Limestone landscapes in the Burren, Ireland are a significant tourist attraction.
Basalt
- Colour: Grey/black
- Texture: Medium grained
- Formation: An extrusive rock formed when lava cools and hardens on the Earth's surface after volcanic activity. The quick cooling process results in small, virtually invisible crystals.
- Use: Road chippings due to its hardness. The landscape formations (like the Giant's Causeway) are a popular tourist destination.
- Example: Found in the Antrim-Derry Plateau, in particular the Giant's Causeway.
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