Glass carousel
Harbor frame
Harbor glass · Clear tide edit
Harbor notes
Glass shelves · bracketed field sheets
Description
Unlike amethyst or citrine
not just the idea of it
The mineral's name comes from the Greek apatao (to deceive)—it was historically mistaken for Tourmaline
and a genuinely piezoelectric and pyroelectric mineral: it generates an electric charge under mechanical pressure and temperature change
Blue Kyanite Sterling Silver Ring Black Tourmaline Unlike amethyst or citrineA blade of blue caught in silverthe mineral's natural striations visible through the stone. Blue Kyanite is an aluminum silicate, chemical formula Al2SiO5, with a distinctive anisotropic hardness: Mohs 4. 5 along the long axis, Mohs 6. 5 across itwhich is why lapidaries work it with such care. Its color ranges from pale sky to deep sapphire, concentrated in parallel striated bands that run the length of each blade shaped crystal. This faceted stone is
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