Presentation on theme: "Bell Work 9/2/14 1 1.What element is Group 1 and Period 4? Potassium 2. What is that element’s atomic number? 19 3. How many electrons does it have? 19."— Presentation transcript:
Bell Work 9/2/14 1 1.What element is Group 1 and Period 4? Potassium 2. What is that element’s atomic number? 19 3. How many electrons does it have? 19 4. What is its atomic mass? 39.098 5. How many neutrons does it have? 39 – 19 = 20 On your desk : 1.PRIDE card 2.IN 3.Pencil/Pen
A mineral is a naturally formed, inorganic solid that has a definite crystalline structure. What is a mineral?
Mineral Groups Everything on Earth is classified into various categories based on certain properties and minerals are no different!
2 Groups Silicate Minerals Non-Silicate Minerals
Silicate Minerals Minerals that contain Silicon, Oxygen, and one or more other element. Silicon and oxygen are the two most common elements in the Earth’s crust Examples: quartz, feldspar, and mica
Non-Silicate Minerals Minerals that do not contain a combination of silicon and oxygen. They may contain carbon, fluorine, and sulfur. Examples: copper, calcite, fluorite, corundum, gypsum, and galena
S olid Cannot be a liquid, gas, or plasma. I norganic It is non-living. It is NOT alive and never was. N aturally Occurring Found in nature, not man- made. C rystal Form A definite structure in which atoms are arranged. Minerals have 4 properties
– Is it a s olid? – Is it Inorganic(non-living)material? – Is it formed in Nature (not man-made)? – Does it have a Crystalline structure? When trying to figure out if it is a mineral or not THINK SINC!!!!
ItemMineral OR Non-mineral?If Non-mineral: list the properties it doesn’t have (S,I, N, C) 1. 2. 3. 13. Output side of IN
Wood Is it a s olid? YES Is it I norganic (non-living) material? NO Is it formed in Nature (not man-made)? YES Does it have a Crystalline structure? YES THINK SINC!!!!
ItemMineral OR Non-mineral?If Non-mineral: list the properties it doesn’t have (S,I, N, C) 1. Wood 2. 3. 13. Non-mineralIt ISN’T Inorganic Output side of IN
You now know how to identify if an item is a mineral!! NOW we need to learn how to identify specific types of minerals!!
Let’s get our READ-ON! Mineral Identification Chapter 1- Section 2 Pages 8 – 11
Let’s get our READ-ON! Mineral Identification Chapter 1- Section 2 Pages 8 – 11 Read and outline Section 2 in your “IN” Helpful hints: -Summarize each main section -Highlight vocabulary words and define them -Write down examples to help you remember Mineral Identification: Chapter 1: Section 2 Pages 8-11 Color Luster
Bell Work 8/30/13 1.What are the 4 properties of minerals? THINK SINC!! – Solid – Inorganic – Naturally occurring – Crystalline structure 2. What are the 2 groups of minerals? List two examples of each. Silicates – quartz, feldspar, and mica Nonsilicates- copper, calcite, fluorite, corundum, gypsum, and galena On your desk you should have: 1.Agenda (opened to PRIDE card) 2.Interactive Notebook 3.Pencil/Pen
Warm-up 9/3/13 1.List the 7 tests used to identify minerals. 2. Put a star next to the test you think is the most reliable. Why did you choose that test? Color Luster Streak Cleavage and Fracture Hardness Density Special Properties
Identifying Minerals Geologists use 7 simple tests to identify minerals. The tests are based on a mineral’s physical and chemical properties. 7 tests – Color – Luster – Streak – Cleavage and Fracture – Hardness – Density – Special Properties
Color Color- What does it look like? Least reliable test to determine a mineral – Many different minerals have the same color – Minerals can weather and change color Beryl containing iron (Fe) = blue, yellow, or green Beryl containing Manganese(Mn) = pink or red Beryl containing Chromium(Cr)= green
Warm-up 9/4/13 1. Minerals are inorganic, what exactly does that mean? 2. List 3 other inorganic things: 1. 2. 3. Inorganic = not alive and never were alive.
Luster Luster- The way a surface reflects light. 3 types of luster Metallic- Bright and reflective Submetallic – Dull and reflective Non-Metallic- waxy, pearly, earthy, silky, vitreous, plastic
Streak Streak- the color of a mineral in powdered form. Rub a mineral across a piece of porcelain called a streak plate Good indicator of a minerals true color because the streak is not affected by air or water.
Cleavage and Fracture Cleavage and Fracture- Describes how a mineral breaks Cleavage- the mineral breaks along flat surfaces Fracture- the mineral breaks with a rough edge (uneven, curved, irregular)
Warm-up 9/5/13 What is the difference between cleavage and fracture? Draw an example of each one and label it. CleavageFracture
Hardness Hardness- a measure of the ability of a mineral to resist scratching Based on a 1-10 scale called Moh’s Hardness Scale 1 = easily scratched 10 = resistance to scratching If I rubbed Quartz and Calcite together which one would scratch?
Density Density- the ratio of the mass of a substance to the volume of the substance Measured in gm/cm3 One of the best indicators of a mineral’s identity. Pyrite- 5.2 gm/cm3 Gold- 19.3 gm/cm3
Special Properties Fluorescence- Calcite and Fluorite glow under ultraviolet light. Magnetism- Magnetite and Pyrrhotite are natural magnets. Chemical Reaction- Calcite will “fizz” when you put a drop of acid on it. Taste- Halite has a salty taste. Optical Properties- A thin piece of calcite placed over an image will cause a double image. Radioactivity- Minerals that contain radium or uranium can be detected by a Geiger counter.
Warm-up 9/6/13 Take a look at the mineral Cobalt and write down your observations based on the following tests: 1. Color- 2. Luster- 3. Does it have fracture or cleavage?
Warm-up 9/16/12 When you are doing a streak test, what is the plate that you rub the mineral against made of? What is the name of the Hardness scale we use to identify minerals? Porcelain Moh’s Hardness Scale
Mineral video http://www.youtube.com/watch?v=L9ifD32vtVA