Dims: 1.1" x 0.3" x 0.3"(2.8 x 0.8 x 0.8 cm)
Wt: 2.5 g
A single, bi-colored crystal constitutes this specimen. It has a rather flattened, rounded trigonal prismatic shape and is topped by a shallow trigonal pyramidal termination. Though a bit warped and unusual, there is a definite termination at the crystal's base, too. It appears that a "sheath" grew over a small crystal, enveloping all but a portion of its base, which interrupted the growth of the second termination. I didn't know that this crystal was double-terminated until I was examining it to write this description! It has the standard vitreous luster of tourmaline, and has excellent transparence with very few visible internal fractures or flaws. It is colored an olive-greenish at its "base", becoming a pale blue about two-thirds up its prism length. A small band of blue material at the tip of the "base" termination tells me that I was right about this starting out as a small crystal that was covered over. I believe that a watermelon tourmaline effect will show up in a cross-section, with an olive-green core and a pale blue outer layer. Oh, yes, there is one more thing to talk about; a line of deeper blue coloration inside the crystal marks the end of the smaller, green crystal. This blue line is perpendicular to the crystal's length, but it slopes down near the outside of the crystal, creating a phantom of sorts. Maybe such phantoms are not uncommon in watermelon tourmalines, but this is the first time that I have seen one.