Download The Silicates Mineral Notes

It’s Lego Time link
Why were the lego
structures different?
They have a different arrangement of the
same pieces.
Why are some minerals harder than others?
_________________________________
The internal arrangement of atoms
Why do minerals leave a different color streak?
___________________________________
The internal arrangement of atoms
Why do some minerals have cleavage and others
have fracture?
The internal arrangement of atoms
___________________________________
The internal arrangement of atoms determine a
minerals _____________________________
Physical Properties
MOST ABUNDANT
ELEMENTS IN MINERALS
***See Earth Science Reference Tables***
The Silicates
Mineral Notes
The Chemical composition of the
Earth’s Crust (page 1 of ESRT’s)
is mostly made of oxygen and
silicon
** Minerals composed of silicon and oxygen are
abundant (lots of them)**
The Silica Tetrahedron is:
the building unit for all silicate minerals
Consists of:
1 silicon atom surrounded by
4 oxygen atoms
Quartz
Feldspar
Olivine
Augite
(pyroxene)
Hornblende
Biotite Mica
Muscovite
Mica
Chlorite
Kaoline
Garnet
How do you know if it is a Silicate?
It’s easy,
Just
look for
silicon
and
oxygen
A diamond and graphite are not silicates, however
they are excellent examples of how minerals can
have the same chemical composition (Carbon) but
different physical properties because of their
crystal structure
Diamond
Graphite