Rock And Mineral Identification Guide Pdf

Is the rock made of crystal grains.

Rock and mineral identification guide pdf.

Freeport mcmoran copper gold foundation. In simple terms hard rock scratches glass and steel usually signifying the minerals. Coarse grains are visible to the naked eye and the minerals can usually be identified without using a magnifier. Trap rock is a name applied to any dark colored igneous rock used to produce crushed stone.

Fine grains are smaller and usually cannot be identified without using a magnifier. Rasmussen revised from a booklet by susan celestian 2012 donations for reproduction from. Olivine is a group of minerals that come from magma. You may need to use a magnifier.

First determine composition which is based on mineral content or color if you can t see minerals. It is important as a rock forming mineral. Rock mineral and fossil collections. The key can help guide you to the correct rock identification.

The mica group is the name given to a group of silicate minerals that have silicon and oxygen as their two major components. To identify name igneous rocks you determine two things about the rock. Specimens for personal or classroom use. Difficult rocks elementary students find lots of rocks that you will not be able to identify.

This is measured with the mohs scale and refers to the minerals contained within a rock. Then determine the texture of the rock and based on the two identify t he rock name. It is more important as a rock forming mineral than as a collectible specimen. Rock and mineral kits.

How to identify rocks and minerals by jan c.