These are the most frequently used words in this book.
another
area
australia
base
beautiful
black
blue
boulder
butte
called
carats
claims
cliffs
color
common
coober
county
cram
cut
deposits
details
discovered
even
field
figure
find
fire
first
form
found
good
green
hill
homestead
however
hyalite
km
known
large
light
lightning
little
long
material
matrix
may
miles
mine
mined
mineral
miners
mining
mm
mountains
name
named
near
new
north
now
number
occurrence
occurs
often
opal
opalized
part
pattern
pedy
piece
poc
precious
red
ridge
rock
seams
see
small
sometimes
south
specimen
states
still
stone
time
transparent
two
type
united
usually
valley
variety
virgin
volcanic
water
west
white
wood
world
year