Minerals. Background before studying Minerals and Rocks. http://safeshare.tv/w/CGSaTEcQjF http://www.youtube.com/watch?v=AYBw2Ye0gYY http://www.youtube.com/watch?v=VmoZ4IG0lhQ. Main Idea. Supporting detail. Elements. A substance made entirely of 1 type of kind of atom. Supporting details.
molecule of 2 Hydrogen atoms
H = element molecule
A molecule made of 2 hydrogen and 1 oxygen
Atom – compound molecule
4 Qualities all minerals must have:
1. ## Naturally occurring –
they are formed in nature
they are NOT made by humans
* Diamonds and other gems can be made in nature but they can also be created in labs but they are not minerals because humans have made them.
4 Qualities of
2. ## Solid
- most minerals are solids minerals have a fixed, ridged shape and volume (they take up space)
3. ## Have a definite crystal structure
atoms line up in a regular, repeating pattern.
4 qualities of
4. ## A fixed chemical composition
Always contains certain elements in the same proportion. They have a chemical formula.
Au = gold
H2O = water
H2O2 = hydrogen peroxide
C6H12O6 = sugar
Most minerals are compounds, (2 or more different elements chemically joined).
4 qualities of
All minerals must:
Occur naturally in nature and are not man made
Definite chemical composition which is usually a compound
Create or re-draw you circle map – remember circle maps are used to define terms in
Context or for brainstorming ideas in writing
Write a definition for a MINERAL use a complete sentence
***The grouping names are usually based on elements but occasionally compounds***