Wow! Talk about aesthetics! This 3.2 x 2.5 x 1.5 cm twinned calcite is perched squarely on needle-like crystals of calcite. It has a slight color to it caused by Hematite staining, and in person is slightly more colorful than shown. Ex. Metzger Collection (early-mid 1900's), though certainly the piece was mined before then.