Chapter 26.1 Flashcards
Mineral
is a naturally occurring inorganic solid with a crystalline form.
Streak
The color of a mineral in a powered form
Cleavage
When a mineral breaks along preferred planes of weakness creating sets of smooth parallel sides
Fracture
Minerals that break with irregular surfaces
Hardness
The physical property that measures a mineral’s resistance to scratching
Magma
Molten rock material inside Earth
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 and Silicon
What does inorganic mean?
Materials that are not living
What does the arrangement of an atom and the bonds between them reflect about a mineral?
Mineral breaks, how hard it is, and what types of crystal shape it has
What are all of the ways to identify minerals?
Luster, Streak, Atomic arrangement, Cleavage, Fracture, Hardness, Crystal shape
What are the two types of luster?
metallic and nonmetallic
How does metallic luster reflect light?
reflects light in a way that a metal surface might
How does Nonmetallic luster reflect light?
shines like glass or appears earthy or waxy
How do you preform a streak test?
by rubbing a mineral on a unglazed, white porcelain tile