ALEX STREKEISEN-Crenulation cleavage

Alex Strekeisen - I vetrini della mia fantasia

ALEX STREKEISEN-Tremolite

Crenulation cleavages

ALEX STREKEISEN-Crenulation cleavage

ALEX STREKEISEN-Cataclasite

ALEX STREKEISEN-Hedenbergite

ALEX STREKEISEN-Dumortierite

ALEX STREKEISEN-Deformation Twins

Cleavage (geology) - Wikipedia

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ALEX STREKEISEN-Wollastonite