The ability of a mineral to resist being scratched

The way a mineral surface reflects light

The breaking of a mineral along a smooth flat surface

The color of the mark that a mineral makes when it is scraped on a white or black tile

The process of testing to see what color streak is left behind

A solid mixture of minerals that was formed in earth the earths crust

Rock that was formed from cooled magma or lava

The process of rocks changing into other kinds of rocks

Rock that was formed when sediments were layered, pressed and cemented together

Rock that was formed when a different kind of rock had pressure and high heat applied to it deep inside the earths crust

We test for harness using different objects including a fingernail, a copper penny, a paper clip or a nail, and a piece of glass

We use color to classify minerals it is the most effective way to identify them. It is not better to use a hardness test to identify minerals

Even though we use color to classify minerals it is not the most effective way to identify them. It is better to use a harness test to identify minerals

For cleavage, we are looking at how the rock breaks to see what shape the edges makes

Rocks are made up of minerals and other

Select the three main categories of rocks

_______rocks are formed when sediments form layers that are then press together. Some of the sediments include shells and fossilized remains of plants and animals

Which rocks require enormous amount of pressure and high heat