Classifying rocks

Front

I describe how a rock reflects light. Which physical attribute am I? Options: Color, Hardness, Texture, Luster

Back

Luster

Front

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

Back

Texture

Front

You are describing a rock's texture. Which word would you use? Options: Green, Metallic, Rough, Pearly

Back

Rough

Front

What is used to measure a rock's hardness?

Back

Mohs Scale

Front

I cannot be scratched by a fingernail, but I can by a copper coin. Which mineral am I? Options: Topaz, Fluorite, Calcite, Quartz.

Back

Calcite