Chapter 3 (minerals) Reverse Flashcards
A mineral or rock is an ore if it contains:
a useful substance that can be mined at a profit
◦Magnetite contains iron
◦Bauxite contains aluminum
Metallic elements can dissolve in fluids and thus make a mineral deposit in the rocks over time
Vein Minerals
low density and very durable to make areplane blades and hip implants
Titanium
is a naturally occurring, inorganic solid** with a **definite chemical composition** and an **orderly arrangement of atoms.
There are about 4000 that share these characteristics.
What is a mineral?
- Crystals can be formed by many processes. They can be cooled from magma and they can also form from solutions of salts.
How Crystals can be formed?
Silicates are rock-forming minerals that contain oxygen and silicon.
What are silicates
1. Mineral appearance
2. Hardness
3. Mohs Scale.
4. Luster
5. Specific gravity:
6. Streak:
7. Cleavage:
8. Fracture:
Mineral identification (list of 8 parameters)
the way mineral breaks that result in an uneven, rough, or jagged surface
Fracture:
the way mineral breaks that results in a smooth, flat plane
Cleavage:
characteristic of metals that tells us how it reflects light
Luster
- the way mineral breaks that result in an uneven, rough, or jagged surface
- describes how a mineral breaks into forms or shapes other than flat surfaces. (e.g. uneven, rough, jagged surfaces).
Fracture:
- All formed by natural process.
- Inorganic
- An element or compound with a definite composition
- Crystalline solids
4 characteristics of all minerals
a measure of how easily a mineral can be scratched. Mosh scale.
Hardness:
the way mineral breaks that results in a smooth, flat plane
Cleavage:
