Flashcards in Chapter 10-11 Deck (11):
What is a mineral?
Minerals are naturally occuring inorganic solid minerals composed of on element or compound
What is a rock?
A rock is a mixture of one or more minerals
How do you identify minerals?
a)Moh's hardness scale
b)shape of crystals
What is Moh's hardness scale?
Moh's hardness scale is based on "hardness" value and is on a scale from 1-10
What is lustre?
Lustre is the "shineness" of a material and depends how the light is reflected
What is streak?
Streak is when a material is rubbed across a piece of unglazed porcelein tile and it leaves a streak, the streak color is the color of the powdered form of the mineral, mineral with hardness value greater than porcelain will not leave a streak
What is cleavage and fracture?
Cleavage is if it breaks along smooth, with flat surfaces. Fracture is when minerals that break with rough or jagged edges
What are 3 types of rocks?
What are igneous rocks?
Igneous means fire in greek, is formed when hot magma cools and solidifies, and magma is melted rock found below thw earth's crust
What are sedimentary rocks?
Sedimentary rocks are the most common type of rock on Earth's surface; formed by compacity of sediment