20hhgd.is ((CALCITE, SPHALERITE)), $35 MINIMUM BID, Picher, Oklahoma, 8 x 6.5 x 5 cm, Cabinet | |
Undamaged scalenahedral terminated crystals of Calcite on brecciated Limestone covered with gemmy red Sphalerite known as Ruby Jack. ex Glenn Davidson collection. ex Thames Valley Minerals specimen. |