英文關鍵字
chalcopyrite
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close
colour
consisting
copper
crystal
crystalline
cube
cubic
disulfide
geologic
geology
glowing
gold
golden
hydrothermal
iron
locality
luster
macro
material
materials
metal
metallic
mine
mineral
mineralogy
minerals
natural
nature
ore
pakistan
purple
pyrite
raw
rock
rotating
sample
semiprecious
specimen
stone
sulfide
sulfur
sulphide
surface
yellow