greenschist:
Bark of Eucalyptus
greenschist:
Concentric Rings with Raised Surface (~30cm diameter of largest ring) [1 of 4]
greenschist:
Beds
greenschist:
the face of a glacial erratic
greenschist:
Jointing
greenschist:
The Pattern
greenschist:
Conglomerate
greenschist:
Broken
greenschist:
No. 31