Actual Section 1 Flashcards
Quantitative
A measurement
Qualitative
Describing the objects physical properties
Four characteristics of all minerals
Inorganic, solid, natural, crystal structure
Copper
Electrical wiring
Gypsum
Drywall
Quartz
Glass
Talc
Make-up
What are the two major mineral groups
Silicate and non-silicate
What is the basis of those groups
Silicate contain silicon and oxygen and non-silicate do not
Luster
How light reflects off on mineral
Examples:
metallic: Galena
nonmetallic: Quartz
Hardness
Minerals resistance to scratch
Examples: 1 talc and 10 diamond
Streak
The minerals powder, the true color of a mineral
Examples:
Hematite- redish brown
Gypsum- white
Cleavage
How a mineral breaks along smooth flat surfaces
Examples: Halite and Gelena: cubes
Fractures
How mineral breaks a long rough jagged services
Examples: talc and olivine- no flat surfaces
Fluorescence
The ability for some minerals to glow under UV light
Examples: fluorite
Heft
How heavy a mineral feels in comparison to its size
Examples:
Gelena- high heft
Halite- low heft
What are some special properties that you observed in the lab
- Smell
- Fizzing
- Taste
- Double image
What is Mohs hardness scale
The skill of how mineral resists being scratched. Goes from 1 being the softest to 10 being the hardest
What is the softest mineral
Talc
What is the hardest mineral
Diamond
How do you test for hardness? What objects are used?
Using a fingernail, Penny, steel nail, or glass plate
Explain how you identified minerals in the lab
- defined the samples luster
- determine the hardness
- determine if it lacks or shows cleavage
What is a gem stone?
They are valued for their beauty and not their use
Example: Topaz
What is an ore?
They contain minerals that have a high metal content
Example: gold
