1 / 14

Minerals

Minerals. A mineral: occurs naturally Is inorganic Is solid Has a crystal structure Has a definite chemical composition. Minerals. There are 3000 minerals. 100 are common. 20 minerals make up most of the rock’s of Earth’s crust ( rock - forming minerals). Mineral Formation.

kioshi
Download Presentation

Minerals

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Minerals • A mineral: • occurs naturally • Is inorganic • Is solid • Has a crystal structure • Has a definite chemical composition

  2. Minerals • There are 3000 minerals. • 100 are common. • 20 minerals make up most of the rock’s of Earth’s crust (rock-forming minerals).

  3. Mineral Formation • Minerals form through: • Crystallization of melted materials. • Crystallization of materials dissolved in water.

  4. Crystals • Repeating patterns of a mineral’s particles that form a solid.

  5. Minerals • All minerals contain certain elements in definite amounts. • Most minerals are compounds (two or more elements). • Silver and gold are considered minerals.

  6. Mohs Hardness Scale Talc 1Gypsum 2Calcite 3Fluorite 4Apatite 5Feldspar 6Quartz 7Topaz 8Sapphire 9Diamond 10 The Mohs hardness scale ranks ten minerals from softest to hardest.

  7. Minerals are ranked according to: • Color

  8. Streak– the color of a mineral’s powder.

  9. Luster – how shiny a mineral is.

  10. Density—mass per unit volume (specific gravity)

  11. Cleavage – breaking of a mineral along a regular line.

  12. Fracture – irregular breaking of a mineral.

  13. Fluorescence Minerals that glow under ultraviolet light.

  14. Magnetism Magnetism occurs naturally in some minerals, such as magnetite.

More Related