Iolite 7mm Cube Table Cut Bead - 15-16 Inch - CLEARANCE 8-Inch †Tourmaline is unusual in
Description
†Tourmaline is unusual in that it is both pyroelectric and piezoelectric
It also occurs in golden yellows and browns as well as milky white
These stones have unique green pigmentation when compared to other turquoise sourced from the region
5x2 Inches / 38x51mm / 3
Trace amounts of iron can also affect the hue
Iolite 7mm Cube Table Cut Bead - 15-16 Inch - CLEARANCE 8-Inch †Tourmaline is unusual inIolite most commonly occurs in shades of blue to gray, violet or indigo. It displays a visual property called pleochroism, which means that it can appear to be different colors as it shifts in the light. According to Norse legend, Viking explorers used thin pieces of Iolite as the worlds first polarizing lens to help them determine the exact location of the sun for navigation.
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