Minerals and Scientific Method
What is the Order of the Scientific Method?
1. State the Problem
2. Gather Info
3. Form a Hypothesis
5. Record Data
What are minerals?
Definite chemical structure
must form crystals
How to Identify a Mineral?
Hardness (Scratch Test)
Crystal Shape (form)
Luster (Metallic or non metallic)
What is mineral Hardness?
A minerals ability to scratch another mineral
Name the order of Mohs hardness scale from least to greatest
What is Luster?
Shininess; Metallic or Non-Metallic
Why do you think color might not be the best way of Identifying Minerals? Name an Ex for Each?
1. The same mineral can have many different colors
2. Different minerals are the same color
Gold and Fools Gold
What is Streak?
Color of the powder when rubbed on a de-glazed tile
What is Cleavage?
When a mineral splits along smooth when struck hard
What is Fracture?
When a mineral breaks unevenly and rough
What are the 3 best ways to identify a mineral?
Streak, Hardness, and cleavage