Sweetwater  Mine, Missouri, USA - Colorless to very pale yellowish translucent semi-lustrous prismatic crystals of calcite to 3.7 cm in length set attractively over the top of a 9.5 x 5.5 x 5.0 cm pyrite, chalcopyrite, and dolomite crystal matrix. Very minimal micro-cleaving present, this is in very good condition and sits very nicely by itself for display.

Dreislar, North Rhine - Westphalia, Germany - A good Dreislar example with tightly packed ivory white blades of barite with a pink baryte backing, dotted over by isolated dark golden iridescent chalcopyrite and some off white dolomite rhombs. Size: 4.3 × 7.1 × 4.8 cm