Flashcards
8.5 Mineral Resources
Cards in this deck (16)
- 1Unit 8.5Mineral Resources
- 2What are minerals?Minerals are naturally occurring chemical substances that make up igneous, sedimentary and metamorphic rocks.
- 3What is an ore mineral?An ore mineral contains metal or some other valuable material. Some ore minerals are pure elements.
- 4Name an example of a pure element.Gold is one of the few elements that can be found in nature as a pure element.
- 5What is a metal found as a pure element also known as?Native Metal
- 6Name two examples of native metals.Two examples of native metals are silver and copper.
- 7What is Australia an important exporter of?Titanium,Nickel,Copper,Tin & Silver
- 8When do prices of minerals increase?The prices of minerals increase in demand from other countries, and prices fall if there is less demand for our minerals.
- 9How are most minerals formed?Most minerals are formed by the processes of heat & pressure.
- 10What is the difference between stalagmites & stalactites?Stalagmites rise from the floor while stalactites hang from the ceiling.
- 11What are hydrothermal fluids?A superheated fluid that circulates through the Earth's Crust.
- 12What are mineral resources?Minerals that are dug up and used are known as mineral resources.
- 13What are the three processes of obtaining minerals?Mining, Processing & Rehabillation
- 14MiningThe resource is removed from the ground
- 15ProcessingThe unwanted materials are removed, and the wanted material is exracted.
- 16RehabilationAfter all mining and processing is completed, theming site is repaired.