Up for your consideration is a quartz matrix tourmaline specimen. The approx.; 6.5 cm x 5 x 1 cm. matrix hosts numerous green tourmalines,the largest being 1 cm X 4 cm. some of which exhibit a cucumber like appearance.!  Collected by David Shannon back in 1995. From Brandburg, W. of Uis, Namibia.  Need any more details feel free to write!