These are the most frequently used words in this book.
1
10
100
alteration
angle
anions
atoms
axes
axis
between
biaxial
birefringence
bonds
brown
cations
cell
characteristics
charge
chemical
clay
cleavage
color
colorless
common
commonly
composition
contain
crystal
deposits
different
direction
electrons
elements
energy
extinction
faces
fe
figure
form
found
grains
green
group
hexagonal
high
higher
include
index
indices
interference
lattice
layers
less
light
lower
material
may
metamorphic
minerals
mount
na
octahedral
optic
optical
orientation
oxygen
parallel
plane
positive
produced
properties
quartz
ray
refraction
relief
rocks
sample
section
sheet
silicates
sites
small
structure
surface
symmetry
table
temperature
tetrahedra
thin
three
twinning
twins
two
unit
use
used
usually
varieties
white
yellow