GEOL 104 Lect4

2 Pages
Unlock Document

Geological Sciences and Geological Engineering
GEOL 104
Michael T.Mc Bride

Crystals Minerals are crystalline solidsUnder ideal conditions minerals can grow and form perfect crystalsw ith planar surfaces sharp corners and straight edges which is the external manifestation to an ordered internal atomic structureMinerals dont always show well formed crystal faces but always have internal crystalline structureCrystalline structure is very important for a mineral because it helps determine the properties of a mineralA good example of this is diamond and graphiteIn diamond each carbon is very strongly bonded to 4 other carbonsthis makes diamond the hardest substance on earth it has a hardness of 10diamond has 4 different cleavage directions direction in which it can breakLustre is the way it reflects light to your eyes and diamond has excellent lustreIn graphite each carbon is bonded to
More Less

Related notes for GEOL 104

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.