Properties of Rocks

Is the first thing you notice about a rock....

• Lustre

• Streak

• Fracture

• Colour

The minerals that make most of the rocks on Earth

• Diamond, talc, granite, marble

• Calcite, quartz, feldspar, hornblende, mica

• igneous, metamorphic, sedimentary

• gravel, boulders, stones

Tags

NGSS.MS-ESS3-1

How a rock or mineral breaks is called....

• Lustre

• Hardness

• Cleavage and fracture

• Streak

How is hardness measured in rocks and minerals?

• Richter Scale

• Mercalli Scale

• Mohs' scale

• Versace Scale

You identify a rock or mineral based on the mark it leaves after you rub it on sandpaper. This is called....

• Hardness

• Streak

• Fracture

• Lustre

The way a mineral or rock reflects light is called....

• Lustre

• Colour

• Hardness

• Fracture

Tags

NGSS.MS-PS4-2

What can scratch a diamond?

• Nothing

• Calcite or Quartz

• Diamond

• Talc

Are rocks made out of minerals?

• Yes

• No