1 / 19

Rocks and Minerals

Science Background. Mineral resources can be metallic or nonmetallic.Metallic minerals that can be mined for profit are referred to as ores.Bauxite is the ore used to make aluminum.Hematite and magnetite are ores used to make iron.Gold exists as an ore in a natural state.. Nonmetallic minerals.

fisseha
Download Presentation

Rocks and 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. Rocks and Minerals

    2. Science Background Mineral resources can be metallic or nonmetallic. Metallic minerals that can be mined for profit are referred to as ores. Bauxite is the ore used to make aluminum. Hematite and magnetite are ores used to make iron. Gold exists as an ore in a natural state.

    3. Nonmetallic minerals Include apatite, calcite, fluorite, diamond, quartz, and talc. Some nonmetallic minerals are used as building materials. Clay is used to make tiles an bricks Gypsum is used to make wallboard and plaster.

    4. How do minerals and rocks differ? Minerals are made of crystals that have a geometric, repeating pattern. Rocks are made of one or more minerals.

    5. What is the difference between organic matter and humus? Organic matter is any substance made of living things or the remains of living things. Humus is a type of organic mater formed from decayed plants and animal remains.

    6. Minerals Natural, Non-living Solid Made up of crystals Definite chemical structure

    7. Crystals The particles that make up the crystals of a mineral are arranged in a distinct, repeating pattern that is reflected in the shape of the crystal.

    8. Examples of minerals Quartz Diamond Copper Ruby

    9. Minerals Can be identified according to their properties Hardness Crystal shape Cleavage pattern Color Luster

    10. Minerals Some minerals are rare and valuable natural resources. In order to conserve limited natural resources, minerals such as aluminum and tin are recycled. Some minerals can be produced artificially.

    11. The Mohs Mineral Hardness Scale The hardness of a mineral depends on the strength of its chemical bonds. Diamonds have strong bonds between carbon atoms, which makes diamond the hardest mineral on the scale. Talc, the softest mineral, has very weak bonds.

    12. Mineral Hardness The hardness of a mineral can determine its use in an industrial or commercial setting. Since diamonds are hard, they are often used in the drill bits that drill into rock in search of water, oil, or natural gas. Talc, on the other hand, is the main ingredient of talcum powder.

    13. Rocks Solid Natural material Made up of one or more minerals

    14. Rock Cycle Throughout the rock cycle, rocks break down, and the minerals in them become recycled. Rocks are constantly changing as part of the rock cycle. These changes can take millions of years.

    15. Types of Rocks Sedimentary Igneous Metamorphic Each forms in a different way and has unique characteristics.

    16. Fossils Scientists can use sedimentary rock to relatively date past events. Some fossils form when an organism is buried in soft mud. Finding fossils in sedimentary rock can help scientists determine the age of the rock.

More Related