According to the Moh's Scale, which mineral is the softest?

• gypsum

• Diamonds

• Fingernails

• Talc

According to the Moh's Scale, which mineral would scratch a steel nail?

• Fluorite

• Topaz

• Orthoclase

• Talc

According to the Moh's Scale, which statement is true?

• gypsum is scratched by talc

• Apatite will scratch a glass plate.

• Orthoclase can scratch quartz

• Orthoclase can scratch Apatite.

You find a colorless mineral vein buried in a rock bed. You discover you can scratch a penny but you can't scratch a glass plate. Which mineral is it most likely?

• gypsum

• Apatite

• Orthoclase

• Fluorite

All minerals have fracture.

• True

• False

Which is not a property of a mineral?

• Organic

• Definite Chemical Composition

• Solid

• Crystalline structure

Tags

NGSS.MS-PS1-1

Magma that cools slowly produces

• Large iron ores

• Large crystals

• Small veins of minerals

• Small Crystals

Streak is the color of the mineral in its powder form.

• true

• false

Quartz occurs in many different colors and rock types and demonstrates fracture. Which of the following properties is most specific and therefore most likely to help you identify quartz?

• Color

• Crystal formation

• Density

• cleavage

Friedrich Mohs developed a classification scheme for minerals based on?

• Color

• Structure of elements

• Hardness

• scratching