Iceland Spar

The gem clarity of this material is fascinating, as are the colorful rainbows created when light pas.....

This polished rhombohedron of Iceland spar is a totally  clear and highly aesthetic specimen of.....

This rhombohedral crystal cleavage of Iceland spar is an unusually colorful honey-like golden yellow.....

Here is a gemmy cleaved rhombohedron of Iceland spar (calcite).  The color is a rich pink with .....

Measuring 4.3" from corner to corner, this is a lovely pink specimen of Iceland spar, a cleaved rhom.....

Here is a large, gemmy, clear, cleaved rhombohedron of Iceland spar (calcite) from Mexico.  It .....

Here is a gemmy yellow specimen of see-through of Iceland spar (calcite).  It is 4.4" from tip-.....

This rhombohedral crystal cleavage of Iceland spar is an unusually colorful yellow, and is a highly .....

This rhombohedral Iceland spar is an unusually clear and highly aesthetic specimen of optical qualit.....

This specimen of Iceland spar (calcite) has good clarity, and clearly shows the characteristic doubl.....

This specimen of Iceland spar (calcite) has good clarity, and a very rich golden yellow color. .....

This specimen of Iceland spar (calcite) has good clarity, and a very rich golden yellow color. .....

Here are 11 specimens of Iceland spar (calcite) featuring good clarity, and with all showing the cha.....