ELBAITE
Specimen elb-16
$ 22.00Dims: 1.5" x 1.4" x 1.3" (3.8 x 3.6 x 3.3 cm)
Wt: 1.60 oz. (45.4 g)
Northwest Frontier Province, Pakistan
Though rather small, this is really a beautiful specimen. It consists of a confusion of well-formed Elbaite watermelon tourmaline crystals that have a pale pink core surrounded by a shell of green material that has a tinge of blue. The cores are visible due to a substantial amount of damage that is mostly in the form of clean fractures across several crystals' basal planes, so that their terminations are missing; however, smaller, well-protected crystals in the cluster are intact and, well, show clean, flat basal terminations that top their trigonal prismatic forms. The largest of these crystals has visible dimensions of 0.5" (1.3 cm) long and 0.3" (0.8 cm) in diameter, and is damaged. All the crystals have well-developed prism faces that show a vitreous luster, and are fully transparent to nearly transparent as they increase in size. Accompanying the Elbaites are many small books of lepidolite mica that actually show some noticeable hexagonal tabular form! There are also some intergrown shards of thin albite crystals, most likely of the variety called cleavelandite. A slight bath in a strong vinegar or a mild (1-2 molar) HCl solution may clean off some of the very thin coatings that are stuck in the Elbaites' prismatic striations.