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

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.

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Well shaped bi-terminated calcite crystal of 3.7 cm stands on this matrix coated by dolomite and chalcopyrite crystals. Nice rock of 8x3.7x1.8 cm

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Very nice cluster of terminated calcite crystals on a coat of tiny dolomites and chalcopyrites. The calcite are all terminated and 2.5-3.5 cm in size. Overall size is 8x2.5x1.8 cm

Fletcher mine, Viburnum Trend, Reynolds Co., Missouri, USA - A classic calcite specimen from this locality. The calcite is biterminated and 2.8 cm in size and sits on a matrix formed by a rich coating of chalcopyrites and dolomite with siegenite ! Nice combination specimen of 3.5x3.5x3 cm

Sweetwater Mine, Reynolds  Co., Missouri, USA - Beautiful iridescent brassy to purplish large crystals of chalcopyrite to 1.0 cm in size scattered over the top of a 4.5 x 4.5 x 2.0 cm dolomite crystal coated matrix. Shows nicely all around and in excellent condition. Very good large crystals for the species from this locality. 

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Showy purple to blue iridescent crystals of chalcopyrite to 0.3 cm in size scattered over this shapely 7.5 x 6.0 x 3.5 cm white dolomite crystal coated breccia matrix. Micro-chipping present but sparse, I think this in good condition.

Yunchangping Mine, Wanshan, Tongren, Guizhou, China - Lustrous red crystals of cinnabar to 0.5 cm in size on a matrix of white crystallized dolomite. The prominent crystals in good condition, slight micro-chipping present. Size: 5.0 x 4.0 x 3.0 cm. Weight is 49 gr

HUONGHUANG, HUNAN PROV., CHINA - Terminated deep red crystals crystals of cinnabar show up on this dolomite specimen. There 2 cinnabars up to 0.8 and 1 cm on the edge, no damage ! Overall size is 6.5x4x3 cm.

Tsumeb Mine, Otavi Highlands, Namibia - On a dolomite micro crystalline coatine there is a large amount of micro crystals of green duftite ! Nice specimen from the Tsumeb area ! Overall size is 7x6x4.5 cm. Ex Trinity minerals (J. Veevaert) specimen