It is important as a rock forming mineral.
Rock and mineral identification guide pdf.
Freeport mcmoran copper gold foundation.
First determine composition which is based on mineral content or color if you can t see minerals.
Muscovite is a member of the mica mineral group.
In simple terms hard rock scratches glass and steel usually signifying the minerals.
Is the rock made of crystal grains.
The mica group is the name given to a group of silicate minerals that have silicon and oxygen as their two major components.
Rasmussen revised from a booklet by susan celestian 2012 donations for reproduction from.
Rock mineral and fossil collections.
The rock key use this key to ask and answer questions on your unknown rock specimens.
Fine grains are smaller and usually cannot be identified without using a magnifier.
Does it have a lot of flat shiny faces may be tiny or small that reflect light like little mirrors.
It is more important as a rock forming mineral than as a collectible specimen.
Coarse grains are visible to the naked eye and the minerals can usually be identified without using a magnifier.
The key can help guide you to the correct rock identification.
Specimens for personal or classroom use.
You may need to use a magnifier.
Difficult rocks elementary students find lots of rocks that you will not be able to identify.
Then determine the texture of the rock and based on the two identify t he rock name.
How to identify rocks and minerals by jan c.
To identify name igneous rocks you determine two things about the rock.
Rock and mineral kits.