Optical Calcite Iceland Spar 28g Rectangular Display Specimen| 37x20x14mm|Clear|RARE!! ICELAND SPAR CALCITE 28g RECTANGULAR DISPLAY SPECIMEN!!! This stunning rectangular 28g Iceland Spar specimen is a beautiful example of optical calcite with brilliant clarity and natural geometric form. Measuring 37x20x14mm, this display crystal showcases the dazzling double refraction that Iceland Spar is known for an optical phenomenon that continues to amaze collectors, makers, and scientists alike. Revered for centuries, Iceland Spar has
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols