background
beautiful
beauty
bright
chalcocite
closeup
colorful
colour
colourful
crystal
diamond
gem
gemstone
geological
geology
glisten
gold
golden
halide
iridescent
jewel
jewelry
macro
material
miner
mineral
mineralogy
mining
multicoloured
natural
nature
nobody
nugget
precious
pyrite
quartz
rare
raw
resource
rock
science
semiprecious
shaft
shine
shiny
solid
specimen
stone
treasure
unique
定額
Chalcocite, copper(I) sulfide (Cu2S), is an important copper ore mineral. It is opaque and dark-gray to black with a metallic. It is a sulfide with an orthorhombic crystal system. Macro.の素材 [FY31038733244]
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