Minerals

The diagrams below show the crystal shapes of two minerals. Quartz and halite have different crystal shapes primarily because...

• light reflects from crystal surfaces

• energy is released during crystallization

• of impurities in their colors

• of the internal arrangement of the atoms

Tags

NGSS.MS-PS1-1

The way in which a mineral's surface reflects light.

• Cleavage
• Fracture
• Density
• Luster

A mineral's resistance to being scratched is called?

• streak
• luster
• hardness
• heft

The color of a mineral's powder is called its

• density.

• fracture.

• hardness.

• streak.

Breakage along rough or jagged edges is called...

• cleavage

• fracture

• streak

• luster

Breakage along Flat sides, Clear Defined shapes, and Even Edges is called...

• cleavage

• fracture

• streak

• luster

Which mineral is mined for its iron content?

• Hematite

• Galena

• Fluorite

• Talc

Which element makes up the greatest percentage by volume in the Earth's Crust?

• Silicon

• Oxygen

• Aluminum

• Potassium

Which minerals contain the two most abundant elements by mass in Earth’s crust?

• fluorite and calcite

• magnetite and pyrite

• galena and sulfur

• amphibole and quartz

Tags

NGSS.MS-PS1-1

Which mineral can scratch A, B, and C, but cannot scratch D?

• Talc

• Dolomite

• Quartz

• Selenite Gypsum