Cantera opal Cantera opal forms within volcanic rhyolite, often revealing vibrant flashes of color nestled within its natural host stone.
TourmalineTourmaline is known for extraordinary color variety (spanning the entire rainbow), unique "electric" properties (pyroelectric and piezoelectric), its ability to display multiple colors in one crystal, as well as different colors or shades when viewed from different angles.
Australian Opal Opals are world-renowned for their dazzling "play-of-color"—an optical effect that diffracts light into flashing, rainbow-like hues as the stone moves.
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