0 a transparent purple stone used in jewellery: --
1 made of or containing amethyst: --
The beach and cliff sides are known for semi-precious gemstones, primarily varieties of agate, quartz, and amethyst.
Again amethyst gloves, brown lace-up shoes with beige socks or 40 denier stockings completed the ensemble.
The winter hat was very dark navy felt trimmed with a navy gross grain ribbon stipped with amethyst and gold.
The buildings were topped by amethyst domes, which were lighted at night and could be seen offshore.
Although citrine occurs naturally, the majority is the result of heat-treated amethyst.
Small quantities of amethyst, peridot, and black opal are also produced.
There are several small surface amethyst mines in the area, some of which allow visitors to search for their own crystals.
Perucca was attempting to replicate a nineteenth-century experiment (1860) in which amethyst exhibited optical activity in the visible light spectrum.
