aggregate
alchemy
cluster
collection
crystal
crystalline
cube
cubic
dense
earth science
fools gold
formation
gemology
geology
geometric
gleam
glistening
golden
heavy
industrial
iron
luster
macro
metallic
metallic luster
mineral
mineralogy
natural
natures
nugget
opaque
pyrite
raw
rock
rough
scientific
sharp edges
shiny
solid
specimen
square
stone
structure
sulphide
sulphide mineral
textures
treasure
valuable