adornment
aggregate
brown
calcite
citrine
cobble
collection
crystal
crystalline
druse
gem
gemstone
geology
industry
jewels
macro
mineral
mineralogy
mining
natural
nature
object
ore
pebble
pink
precious
quartz
rock
rough
semiprecious
set
shiny
silica
silicate
souvenir
stone
structure
texture
transparent
white
yellow