A close-up image shows the sharp, pointed details of a calcium oxalate kidney stone against a dark background.
Schlüsselwörter
crystal,
mineral,
geology,
rock,
texture,
formation,
sharp,
semitransparent,
closeup,
macro,
natural,
detail,
surface,
geologic,
mineralogy,
structure,
composition,
science,
earth,
element,
nature,
raw,
element,
natural history,
scientific,
natural wonder,
rock formation,
earth science
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