accessory
acidic rock
adamantine
alkaline rock
alteration
amorphous
amygdule
aphanitic rock
argillaceous
arsenates
basic rock
bedding
bituminous rocks
borates
botryoidal
calcareous
calcic
carbonaceous
carbonates
clastic rock
clay
cleavage
concretion
contact metamorphism
crystal
crystal symmetry
detrital sediment
dike
feldspar
ferruginous
flow banding
foliation
friable
gneiss
greasy
habit
halides
hardness
hexagonal
hydrothermal
intermediate rock
isometric
lamellar
lenticular
luster
magma
massive
mica
microcrystalline
molybdates
monoclinic
nodular
orthorhombic
oxide
oxidized zone
pearly
pegmatite
phosphates
pipe
placer
playa
plutonic rock
precipitation
pseudomorph
pyroxenes
replacement
resinous
schist
secondary minerals
silica
silicates
silky
specific gravity
streak
striations
sulfates
sulfides
tenacity
tetragonal
triclinic
twin
vein
vesicle
vitreous