編號 100476529

編號 100476529

Watch a video of this specimen by following the Vimeo link below: https://vimeo.com/1144816753/902e995b9f
Unusual specimen of calcite crystals pseudomorphs after large quartz crystals (?) that have dissolved away. We acquired this specimen with a label specifying 'Touissit, Morocco,' yet this is the first time we have encountered such material—from anywhere, actually
Ex collection Koch (Belgium).