Classifying rocks

I describe how a rock reflects light. Which physical attribute am I?

• Color

• Hardness

• Texture

• Luster

I describe how a rock feels. Which physical attribute am I?

• Color

• Hardness

• Texture

• Luster

You are describing a rock's texture. Which word would you use?

• Green

• Metallic

• Rough

• Pearly

I am used to measure a rock's hardness.

• Texture

• Color

• Mohs Scale

• Luster

Tags

NGSS.MS-PS1-1

I cannot be scratched by a fingernail, but I can by cooper coin. Which mineral am I?

• Topaz

• Fluorite

• Calcite

• Quartz