calcite crystal (Iceland spar)
Date: late 19th-early 20th Century
Inventory Number: 3937
Classification: Mineral
Dimensions:2.5 x 3 x 3 cm (1 x 1 3/16 x 1 3/16 in.)
Accessories: piece of paper: "Notice the double refraction / Calcite/CaC03, "Iceland Spar"/ Formed in cold Solutions, Sp.Gr. 2.714. / Hexagonal (Trigonal)"
Description:
Small translucent crystal.