To identify name igneous rocks you determine two things about the rock.
Rock and mineral identification guide pdf.
Rock and mineral kits.
It is more important as a rock forming mineral than as a collectible specimen.
Difficult rocks elementary students find lots of rocks that you will not be able to identify.
The key can help guide you to the correct rock identification.
Olivine is a group of minerals that come from magma.
The mica group is the name given to a group of silicate minerals that have silicon and oxygen as their two major components.
Is the rock made of crystal grains.
Muscovite is a member of the mica mineral group.
You may need to use a magnifier.
Freeport mcmoran copper gold foundation.
In simple terms hard rock scratches glass and steel usually signifying the minerals.
Specimens for personal or classroom use.
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.
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.
How to identify rocks and minerals by jan c.
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.
Coarse grains are visible to the naked eye and the minerals can usually 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.