LUSTER
What is luster in minerals?
Luster is the way a mineral reflects light from its surface.
What is the typical color of sulfur?
Yellow
What kind of surface is used to test streak?
Streak plate
What scale is used to measure mineral hardness?
Mohs Hardness Scale
What are the two main types of luster?
Metallic and non-metallic.
Is color a reliable property for identifying all minerals?
No
What is the streak of magnetite?
Black
What is the hardest mineral on the Mohs scale?
Diamond
Give one example of a mineral with non-metallic luster.
Quartz
What color is quartz usually?
It is usually colorless or white, but can vary
What is the streak of magnetite?
Black
What is the softest mineral on the Mohs scale?
Talc
Does luster depend on the color of a mineral?
No, luster depends on how the surface reflects light, not its color.
What mineral is commonly green in color?
Olivine
Is streak a physical or chemical property?
Physical Property
What is the hardness of quartz on the Mohs scale?
7