英文關鍵字
amatist
amatista
amethyst
amethystine
background
black
clear
close
closeup
cluster
crystal
crystalline
crystallization
crystals
detail
detailed
gem
gemmology
gemstone
geology
isolated
jewelry
macro
macroscopic
material
mineral
mineralogical
mineralogy
natural
nature
object
raw
reflections
reflexive
rock
rotating
rotation
rough
sample
science
shine
shiny
slow
stone
structure
studio
surface
texture
textured
violet