Graphite scientific sample, selective focus, Val Bormida, Savona, Italy
Palabras clave
graphite,
carbon,
element,
italy,
savona,
mineralogy,
electrode,
lead,
nuclear,
moderator,
battery,
selective focus,
isolated,
black,
sample,
specimen,
industry,
mineral,
natural,
nature,
crayons,
piece,
raw,
rock,
rough,
science,
stone,
unpolished,
white
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