Old mine of Iceland spar
a transparent variety of calcite, or crystallized calcium carbonate, originally brought from Iceland, and used in demonstrating the polarization of light (see polarimetry)
en.wikipedia.org/wiki/Iceland_spar
When I came here first there were small fractures of totally clear cristalls in the dumps in the slope beneath the mine. Now I saw no clear transparent cristall. And clearly turists have tried to hammer out parts of the calcium. carbonate vends in the cliffs.
I photographed the most transparent stone I saw, but left it where I found it.
Old mine of Iceland spar
a transparent variety of calcite, or crystallized calcium carbonate, originally brought from Iceland, and used in demonstrating the polarization of light (see polarimetry)
en.wikipedia.org/wiki/Iceland_spar
When I came here first there were small fractures of totally clear cristalls in the dumps in the slope beneath the mine. Now I saw no clear transparent cristall. And clearly turists have tried to hammer out parts of the calcium. carbonate vends in the cliffs.
I photographed the most transparent stone I saw, but left it where I found it.