Karteikarten
Unit 8.5
Karten in diesem Stapel (20)
- 1What are minerals?They are naturally occurring chemical substances found in rocks.
- 2What is an ore mineral?A mineral which contains a valuable material or metal.
- 3What is an example of this?Iron ore and aluminium ore.
- 4What is a native mineral?A mineral found in its pure form.
- 5What are four examples of this?Copper, silver, gold and tin.
- 6What is a use of the mineral titanium oxide?Colouring paints white.
- 7What is a use for the metal titanium?Making steel alloys.
- 8What mineral resources does Australia export?iron ore, lead, zinc, gold, uranium, titanium, aluminium, nickel, copper, silver and tin.
- 9What examples of minerals can be found in igneous rocks?Feldspar and quartz.
- 10What examples of minerals can be found in sedimentary rocks?Calcium carbonate.
- 11What examples of minerals can be found in metamorphic rocks?Garnets.
- 12What are the two forms that calcium carbonate can take after it has crystallised and the water has evaporated from it?Stalagmites which grow from the ground and stalactites which grow from the ceiling.
- 13What type of rock is agate?A metamorphic rock.
- 14What are amethyst crystals?Crystals that form after hot aqueous solutions seep into agate rocks through cracks and evaporate leaving crystallising crystals behind.
- 15What are hydrothermal fluids?Extremely hot solutions from the Earth's surface.
- 16Explain the formation of copper minerals?Water and other fluids are super heated by nearby magma under the Earth's surface, these hydrothermal fluids dissolve copper minerals in the Earth's surface and carry them away into cracks and spaces in the rock where they cool and crystallise.
- 17What is an aura?The name given to the zone in which crystallised copper minerals are found under the earth's surface.
- 18What are vein deposits?The small cracks in the rock in which the hydrothermal fluids carry the dissolved minerals.
- 19What are the three processes by which minerals are extracted?Mining, processing and rehabilitation.
- 20What are the four types of mining?Open cut, underground mining, dredging and leach mining.
Informationen
- Beschreibung
- Karteikarten am Unit 8.5, erstellt von Hibah Albadri am 27/11/2018.
- Erstellt von
- Hibah Albadri
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