Nikolayevskiy Mine, Dalnegorsk, Primorskiy Kray, Russian Federation - A cluster of pearly rounded columnar manganoan calcite with dodecahedral form, slightly speckled with chlorite/pocket debris. Very nice crystals up to 1.5 cm in size. Overall size is  9.4 × 7.2 × 4.5 cm.

Brilliant sharp striated cubic crystals of pyrite to 1.8 cm on edge across the top of this lustrous black sphalerite crystal matrix with quartz. The sphalerite crystals measure to 1.2 cm in size. This is in very good condition with only minimal micro-chipping to some of the quartz crystals at the far lower right side of the piece. Overall size is 6.0 x 5.0 x 2.0 cm. Ex D. Weinrich collection.

Itongafeno,Mahaiza, Madagascar - Very nice cluster of ferrocolumbite. The crystals are well shaped and grouped forming a cluster. Their size is up to 1.5 cm. Overall size is 2.7x2x1.5 cm. Weight is 12 gr.