ELBAITE
Specimen elb-29
$ 225.00Dims: 4.3" x 4.2" x 3.1" (10.94 x 10.7 x 7.9 cm)
Wt: 2 lbs., 3.3 oz. (1.003 kg)
Minas Gerais, Brazil
There are more Elbaite crystals in the quartz host rock of this specimen than I care to count- I would say that there are at least 50, and they are scattered randomly throughout the matrix. These crystals range in length and diameter from a few millimeters to 1 x 2" (2.5 x 5 cm). All are damaged and incomplete. The largest and most noticeable, however, appears to have been rounded and partially polished. It consists of a portion of a very large crystal whose diameter exceeded 2" (5 cm) and which consisted of "watermelon tourmaline", a variety wherein a red "core" was surrounded by a green "shell. Both the shell and the core are easily visible. The cross-section is slightly rounded and has a dull shine to it, whereas the visible prism areas have the standard crystalline faces and striations, and show a vitreous luster. Most are opaque, and a few are only dimly translucent at best. There is one other watermelon tourmaline visible on the matrix; all the other crystals are made of green tourmaline. Many of these show definite trigonal prismatic form. The quartz base is formless and dimly transparent at best, and is heavily internally-fractured.