英文關鍵字
abstract
agate
analyzing
artificial
background
beaker
beauty
biotechnology
bling
brilliant
cave
chemical
chemistry
chloride
closeup
concept
crystal
crystallization
crystallized
crystallizing
decoration
expensive
experiment
filling
geology
hard
lab
laboratory
light
luxury
mineral
natural
nature
pattern
precious
quartz
raw
rock
rough
science
shine
shiny
sodium
solid
spinel
stone
surface
texture
transparent
uncut