Orange Iceland Spar Mineral Specimen 26990 the perpendicular plate of the

the perpendicular plate of the palatine bone

A threaded steel rod protrudes from the end for attachment to the solid round base

Limbs can be removed quickly and easily

You Want to Work With the Ancient and Recent Dead

Orange Iceland Spar Mineral Specimen 26990 the perpendicular plate of theIceland Spar, also known as Optical Calcite, is a striking variety of calcite valued for its polarizing effect on light, a property called birefringence. Historically, it is believed Vikings may have used this mineral to aid navigation on cloudy days. These specimens feature natural clarity and patterns, with unique variations in color and tone. The warm orange hue in these pieces is likely caused by trace amounts of manganese, adding to their visual