Rocks And Minerals🎈 Flashcards
(22 cards)
Geologist
A person who studies rocks and minerals
Properties
The characteristics of a rock/mineral
Color
Not very useful in identifying a mineral, some minerals are nearly always the same color, yet many minerals come in a variety of colors
Color can be described as _____________ and _______________
Non- Metallic and Metallic
Color can also can be described along with _____________
Luster
Luster
Words used to describe the way light reflects off the surface of a mineral
Luster can be described as:
Dull/earthy, waxy, greasy/oily, shiny, pearly, silky, glassy
Cleavage
When a mineral breaks with a smooth flat surface
Cleavage can be described as
Cleavage can be described as perfect, good, imperfect, poor
Cleavage can appear on
One side of the rock/mineral, two sides or three sideshow
Hardness
How resistant a material is to being scratched
Opaque
Not allowing light to pass through
Transparent/transparentcy
Allowing light to pass through
Texture
How something Feels….
Geologists look at the size of pieces that make up a
Rock/mineral
Large piece =
COARSE
Small piece needing hand lens =
MEDIUM
Difficult to see with hand lens =
Fine
Magnetic
Material which is attracted by a magnet
Streak Test
Wether or not the rock/mineral provides a color when rubbed on the streak plate
______Make Up _______
Chemicals, Minerals
________make up______
Minerals, Rocks