What is this?
This is this…
What is this?
This is this…
This is this.
These are these.
These are Minerals.
What are Minerals? Cornell Notes Page 139
ATOMS = BUILDING BLOCKS of everything in the Universe. What are atoms? ATOMS = BUILDING BLOCKS of everything in the Universe.
What is an element? A substance that cannot be broken down into simpler things. Examples: Gold, silver, aluminum
What is a compound? A substance made of more than one element Examples: Water, table salt
MINERALS 3,000 + different kinds of minerals Most are made of combinations of elements (compounds)
5 Characteristics of Minerals 1. Naturally occurring 2. Inorganic =not from a living thing
45 seconds to Discuss… What does it mean to be “naturally occurring?” What does it mean to be “inorganic?”
4. Crystal Structure –particles line up in a pattern 3. Solid 4. Crystal Structure –particles line up in a pattern Pyrite in rock
45 seconds to Discuss… What does it mean to be “solid?” What does it mean to have a “crystal structure?”
Examples of solid, crystal structure Rhodochrosite
5. Definite Chemical Composition A mineral… 5. Definite Chemical Composition Ex.) Water = H2O Salt = NaCl
An example of: definite chemical composition Calcite—has the chemical name--CaCO3 An example of: definite chemical composition Ca=Calcium (as in your bones) C=Carbon (in all living things) O= Oxygen (in the air) http://education.jlab.org/indexpages/teachers.php http://teach.fcps.net/trt20/projects/EKU/Minerals/groups/mineral_groups.htm
60 seconds to Discuss… What do we mean by “chemical composition?” So then what does it mean to have a “definite chemical composition?”
What are the two groups of Minerals? Silicate Minerals chemical composition with a combination of Silicon and Oxygen Quartz = SiO2
Nonsilicate Minerals Do NOT contain a combination of silicon and oxygen. Fluorite = CaF2
45 seconds to Discuss… How are Silicate Minerals and Nonsilicate Minerals different?
How do Minerals form? In Magma and Lava Minerals crystallize in the liquid rock. Different Minerals begin forming crystals at different temperatures- this causes them to separate out into pure samples.
How do Minerals form? In Magma and Lava If magma cools quickly, crystals don’t have time to grow. The slower the magma cools, the bigger the crystal can grow!
In Water Elements and compounds dissolved in water crystallize as the water evaporates
What’s in these minerals/rocks that look so delicious? Oxygen Silicon Aluminum Magnesium Iron Sodium Calcium Potassium http://www.geolsoc.org.uk/gsl/education/page2659.html
The result of eating rocks and minerals…
What is from minerals in the room? What is NOT from minerals in the room? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.