Chapter 26 Flashcards
A naturally occurring inorganic solid with a crystalline form.
Minerals
The color of a mineral in it’s powdered form.
Streak
When a mineral breaks along preferred planes of weakness creating sets of smooth parallel lines.
Cleavage
When a mineral breaks unevenly.
Fracture
The physical property of a minerals resistance to breaking or scratching.
Hardness
Molten rock material inside the earth’s core.
Magma
A mineral is ______, _______, ________.
naturally occurring, inorganic solid, with a crystalline form
What are the two most abundant elements that make up Earth’s crust?
- Oxygen
2. Silicon
What does inorganic mean?
Not living
What does the arrangement of an atom and the bonds between them reflects about a mineral?
How hard it is, and what types of crystal shape it has.
What are all of the ways to identify minerals?
Luster, streak, hardness, cleavage, crystal shape, atomic arrangement, and fracture.
What are the two types of luster?
Metallic and nonmetallic
How does metallic luster reflect light?
The way that a metal surface might
How does nonmetallic luster reflect light?
Earthy or waxy
How do you perform a streak test?
Rubbing a mineral on an unglazed, white porcelain tile
What are the two types of breakage that can happen to minerals?
Cleavage and fracture
What is the name of the scale to measure the hardness of a mineral?
Mohs scale