Stunning, 1.8" Bi-Colored Elbaite Tourmaline - DR Congo

This is a stunning, 1.8" long, bi-colored elbaite crystal that was collected from pegmatites of North Kivu in the Democratic Republic of the Congo. It has a wonderful deep-green zone at the termination, with colorless zoning near the middle and pink zoning at the base of the crystal that spans roughly 3/4". This crystal has gorgeous luster, clarity and well defined striations. It's mounted to an acrylic display base

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
LOCATION
Goma, North Kivu, Democratic Republic of the Congo
SIZE
1.8" long crystal
CATEGORY
SUB CATEGORY
ITEM
#175434