Mineral Properties Flashcards
What are the 7 properties of a mineral?
- luster
- crystal structure
- hardness
- Cleavage
- Color
- Streak
- Taste, magnetism, density
low density- float, high density- sink
Different minerals have different ______ that we use to describe them as well as to identify them.
properties
What is the luster of a mineral?
How light reflects off of the minerals surface
What does luster describe?
How shiny a mineral is, how dull a mineral is,
Vitreous means that a mineral looks _____.
glassy
Pearly means that a mineral has a pearly _____ sheen to it.
oily
Regular geometry due to the internal structure of molecules means that minerals have a….
crystal structure
The ______ of a mineral is determined by the strength of its chemical bonding
hardness
How do we classify the hardness of a mineral?
The hardness scale. 1- 10. 1 soft, 10 hard. The wya you determine the hardness of you muster minerals is you would test it against one of the known minerals not the scale. 1- Talc. 3- Calcite. 7- quartz. 10- diamond. If the mineral socrates your mystery mineral that means that the mineral is harder than your mystery mineral.
_______ is what happens when you break a mineral
Cleavage
Cleavage is determined by….
the shape or geometry of the chemical bonding
Cleavage _____ are a way to identify minerals
planes
Is color a reliable property of minerals?
NO, many minerals come in a variety of colors
What is the color of a mineral in its powdered form?
Streak