Elbaite Tourmaline crystals from Brazil on white matrix, vibrant green-blue mineral specimen

INDICOLITE (BLUE VARIETY OF ELBAITE) in QUARTZ. Madagascar

40 30 31 47
$195.00
Sale price  $195.00 Regular price 
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Elbaite Tourmaline crystals from Brazil on white matrix, vibrant green-blue mineral specimen

INDICOLITE (BLUE VARIETY OF ELBAITE) in QUARTZ. Madagascar

$195.00
Sale price  $195.00 Regular price 
Shipping calculated at checkout.
Size (HWD in mm) Weight in gr40 30 31 47

Indicolite, a blue variant of Elbaite, develops under particular geological circumstances, primarily within metamorphic rocks or pegmatites. The captivating blue shades of Indicolite tourmaline emerge from the interaction of minerals exposed to significant heat and high pressure within the Earth's crust.

Elbaite is a sodium, lithium, and aluminum boro-silicate mineral characterized by the chemical formula Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4, and it belongs to the tourmaline group of six-member ring cyclosilicates. This mineral exists in three series: dravite, fluor-liddicoatite, and schorl, which means that naturally occurring specimens with the ideal endmember formula are rare. As a gemstone, elbaite is highly sought after for its diverse color range and crystal quality. First identified on the island of Elba, Italy, in 1913, it has since been located in various regions worldwide, including a significant find in 1994 at O'Grady Lakes in the Yukon, Canada. Elbaite typically forms in igneous and metamorphic rocks, often found alongside minerals such as lepidolite, microcline, and spodumene in granite pegmatites, as well as andalusite and biotite in schist, and molybdenite and cassiterite in hydrothermal deposits. This mineral is allochromatic, allowing trace impurities to impart color to the crystals, and it exhibits strong pleochroism, showcasing a full spectrum of colors, sometimes with multicolor zonation. Additionally, some elbaite crystals contain microscopic acicular inclusions that create a cat's eye effect when polished into cabochons.

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