1.3" Bi-Colored Elbaite Tourmaline with Mica - Siberia, Russia

This is a beautiful, bi-colored elbaite crystal that formed in association with purple mica (lepidolite?). It was collected from the Mokhovaya Pegmatite Field of Eastern Siberia, Russia. The elbaite is capped by red-pink coloration, shifting to golden-yellow below the termination(s). There is a layer of red-pink elbaite that wraps around the golden core. This color shifting is best viewed by backlighting the crystal.

The elbaite tourmaline is 1.3" long and the entire specimen measures 1.8 x 1.6". It has been mounted to an acrylic display base with mineral tack.

Elbaite is a multicolored form of tourmaline and is perhaps the most multicolored mineral. It has been discovered in virtually every color of the spectrum and has dramatically increased in popularity since the 1990's. While specimens are commonly faceted into gemstones, most high quality crystals are left as is, or are cut and sold as cross-sectional slices. Elbaite forms as short, stubby and/or elongated prismatic crystals with striations that run along their length. Aggregates of elbaite can occur as botryoidal, columnar, radiating crystals and in compact masses.

There are a wide variety names (classic and modern) for elbaite depending on the colors it presents, including achroite (colorless variety), blue cap tourmaline, chrome tourmaline (green variety caused by chromium impurities), fluor-elbaite, indicolite (blue variety), Moor's head tourmaline, mushroom tourmaline, Paraiba tourmaline, rubellite (pink-red variety), siberite (purple variety), verdelite (green variety) and watermelon tourmaline (green exterior with red interior).

The chemical formula of elbaite is Na(Li,Al)3Al6(BO3)3Si6O18(OH)4


DETAILS
SPECIES
Elbaite Tourmaline & Mica (Lepidolite?)
LOCATION
Mokhovaya Pegmatite Field, Malkhan District, Transbaikalia, Eastern Siberia, Russia
SIZE
1.3" long crystal, entire specimen 1.8 x 1.6"
CATEGORY
SUB CATEGORY
ITEM
#175651