A Russian specimen with emerald crystals to 1 cm along with cassiterite crystals to 0.5 cm. Though the crystals are not fine, this was considered quite an important reference combination specimen. It was in the Matwich Collection (he worked in the South Kensington Museum, which later became the Victoria and Albert Museum, from 1860; 1890). From there it went to the collection of B. W. Anderson, director of the world's first gem lab, who worked there from 1926 to 1972. Later, it passed through yet another collection (John Saul, noted miner and gem collector) and through one dealer on the way to me. Not exactly a spectacular cassiterite I admit, but an important piece nonetheless. 3.3 x 3 x 1.7 cm