Download presentation
Presentation is loading. Please wait.
Published byBrandon Marsh Modified over 8 years ago
1
Mineral Groupings
2
Minerals and the Earth There are 8 elements that make up 98.5% of the Earth’s crust. They are: 1.Oxygen 2.Silicon 3.Aluminum 4.Iron 5.Calcium 6.Sodium 7.Potassium 8.Magnesium
3
Mineral Groupings There are 2 groupings of minerals that we need to know: 1.Silicates 2.Non-Silicates
4
Silicate Silicates minerals contain the elements Silicon and Oxygen. They are the largest of the 2 mineral groups Make up 60% of Earth’s crust. Two most abundant silicates are Quartz and Feldspar
5
Non-Silicates Non-Silicates do not contain silicon and oxygen. Some examples are Calcite and Dolomite.
6
Native Minerals Native Minerals are minerals that contain only one element. For Example copper and gold
7
Crystal Growth in Minerals For minerals to grow into large perfect crystals, they need room to grow. Without the proper room to grow, the crystal will not form properly. EX: Diamonds
8
Mineral Definitions Phosphorescence – when a mineral glows after being removed from light. Magnetism – a magnetic mineral Density – how tightly packed the molecules are Radioactive – giving off subatomic particles Double refraction – splitting of light rays to form two images
9
Mineral Facts There are 3000 known minerals in Earth’s crust. Of these 3000, 8 make up 90% of the crust.
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.