|from an aqua-blue to an almost sapphire-like blue!
light blue, medium blue, deep blue
|properties:||RI=1.624 (+/-0.005) - 1.644 (+/-0.006) DR
SG=3.06 (-0.05, +0.15)
suitable for use in jewelry
pyroelectric - becomes electrically charged when heated
piezoelectric - becomes electrically charged when squeezed
many modern higher-end hair dryer use tourmalines in them to prevent static!
usually colored by iron and possibly titanium
can be 100% natural with no treatments or enhancements, or heated, or irradiated and heated (irradiation is not common for indicolite - blue tourmalines)
(see policy on Treatment Disclosure)
|cuts:||calibrated up to 8mm
all standard cuts
and free sizes
|rough:||generally available in clean material to cut sizes 6mm and under; bigger pieces occasionally available - please Contact Us for current stock|
|mining:||found in brazil, nigeria, mozambique, zambia, afghanistan, usa, and other localities worldwide|