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Unit 6.3 - Minerals
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- 1Unit 6.3Minerals
- 2What are minerals?A chemical substance which is found in nature, that has not been made by animals or anything else living and is not living itself.
- 3How are atoms arranged in a mineral?All atoms in minerals have to be arranged in a crystal lattice.
- 4What make up rocks?Minerals are what make up rocks.
- 5Pure and compund mineralsSome minerals are made up of just one element (example; gold and silver). Most minerals are compunds and are made up of many elements (examples; bauxite, opal and rutile).
- 6OresOres are rocks that contain valuable rocks in them like iron and copper. Copper ores contain copper. Some copper ores are; malachite, azurite and bornite.
- 7Minerals in titanuim are used..- As whole minerals to colour paints.
- Separated into the element titanium metals and oxygen then used separately. - 8Properties of minerals are classified by...- Hardness
- Lustre
- Colour
- Streak
- Flame - 9HardnessHardness is how stiff an object is. Hardness is assesed using Moh's scale.
- 10Moh's scaleA set of minerals used to find;
- What can scratch an unknown mineral.
- Which minerals can be scratched by the unknown mineral. - 11Another way of testing hardness.By scratching it with different minerals.
- 12ColourColour is very useful when looking for minerals. For example; gold shows up as a yellowish colour in soil.
- 13LustreLustre is how shiny the mineral is. Lustre is also useful when looking for minerals. For example; gold has a bright shiny surface when clean or wet.
- 14Types of lustre- Glassy
- Waxy
- Metallic
- Dull - 15StreakThe colour that the rock leaves behind when you scratch it on something else. The streak colour is different from the mineral's colour.
- 16Flame colourFlame colour is the colour the mineral makes when set on fire. In a streak test, the mineral is crushed to powder then put into a hot flame.
- 17End of flashcards
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- Fichas sobre Unit 6.3 - Minerals, creado por Salma Samatar el 05/06/2017.
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- Salma Samatar
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