abstract
background
calamine
carbon oxide
carbonate
close up
cluster
collection
color
crystal
crystal cluster
gemstone
geological
geology
greek
hemimorphite
isolated
isolated on black
macro
matrix
mineral
mineralogy
minerals
natural
nature
orange
ore
oxide mineral
pattern
precious
quartz
raw
rock
rough
rough stone
semiprecious
shiny
smithsonite
specimen
stone
texture
uncut
unprocessed
up
yellow
zinc
zinc carbonate
zinc spar
znco3