Amethyst Gemstone | Amethyst Stone - GIA

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Amethyst

The essence of the color purple, amethyst is beautiful enough for crown jewels yet affordable enough for class rings.

Amethyst

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SP15-Costa-fig7-179151-636x358.jpg. Boudi amethyst crystal showing classic morphology

SP15-Costa-fig11-179159-636xv2.jpg. Red hematite inclusions in amethyst

SP17-GNI-fig26_215208-300x169

SP17-GNI-fig26_215208-636x358.jpg. Amethyst crystals from Morocco

SP17-GNI-fig27_215207-636x226.jpg. Amethyst with red flashes of color.

BinaryData-37-636x358.jpg. Amethyst geodes are always a favorite and a crowd stopper at Tucson. Everyone likes to stop and look at the multitude of amethyst crystals surrounded by rock. – courtesy Royal West Warehouse. — Amethyst geodes are always a favorite and a crowd stopper at Tucson. Everyone likes to stop and look at the multitude of amethyst crystals surrounded by rock. – courtesy Royal West Warehouse.

天然および合成アメジストと合成ロッククリスタルのクォーツ結晶. 天然のアメシストおよびロッククリスタルのクォーツ結晶（左）と、合成アメシストおよび合成ロッククリスタルのクォーツ結晶（右）。 — 天然のアメシストおよびロッククリスタルのクォーツ結晶（左）と、合成アメシストおよび合成ロッククリスタルのクォーツ結晶（右）。

アメシスト内に見られる、真紅のヘマタイトニードル. アメシストでよく観察されるインクルージョンは、ヘマタイトの深紅のニードル（10倍に拡大）。ヘマタイトのニードルは薄く、細長いインクルージョンである。天然石にしか見られない。写真：John I. Koivula/GIA — アメシストでよく観察されるインクルージョンは、ヘマタイトの深紅のニードル（10倍に拡大）。ヘマタイトのニードルは薄く、細長いインクルージョンである。天然石にしか見られない。写真：John I. Koivula/GIA

19_Duquette_Cases-12_556x358.jpg. A black nephrite jade bird with a tiger-eye beak clasps an amethyst brooch titled “Mariposa,” the Spanish word for “butterfly.” The case also includes tourmaline and peridot earrings. — A black nephrite jade bird with a tiger-eye beak clasps an amethyst brooch titled “Mariposa,” the Spanish word for “butterfly.” The case also includes tourmaline and peridot earrings.

Amethyst-and-Gold-Necklace-636x358.jpg. This 18K yellow gold cable necklace from the Perpetual Motion Collection features three loose amethyst spheres. Photo by Don Mengason/GIA, gift of Yael Sonia — This 18K yellow gold cable necklace from the Perpetual Motion Collection features three loose amethyst spheres. Photo by Don Mengason/GIA, gift of Yael Sonia

SP15-GNI-Figure 72 179183 468x. Color zoning in amethyst — Color zoning in amethyst

SP15-GNI-Figure 71 179185 636x358. Moroccan amethyst crystals — Moroccan amethyst crystals

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