Amethyst Gemstone is the purple variety of the Quartz mineral. Amethyst’s purple color can range from a light lilac to a deep, intense royal purple, and from brownish to vivid.

Fine amethysts have been set in religious jewelry and royal crown jewels for ages. It was once considered equal in value to ruby, emerald, and sapphire.

Amethyst is a gem with purple coloring that many people find very beautiful. It is the purple variety of the mineral quartz. It was as valuable as ruby and emerald until the 1800s when more amethyst was …

Amethyst Description This amethyst crystal is from Namibia. It shows classic quartz crystal shape: a six-sided columnar crystal with a pyramid-shaped termination at the top. Courtesy Daniel Trinchillo, Fine …

Amethyst from Boudi, Morocco Fabrizio Troilo, Abdelghani El Harfi, Salahaddine Mouaddib, Erica Bittarello, and Emanuele Costa , 四月 30, 2015 阅读详细内容（英语） 摩洛哥紫水晶：采矿和营销 …

モロッコ産アメシスト: 採鉱とマーケティング Andrew Lucas and Tao Hsu , 5 8, 2017 英語で詳細を読む Large Aqueous Primary Fluid Inclusion in Amethyst Ziyin Sun and Jonathan Muyal , 11 7, 2016 …

Amethyst’s color quality ranges from extremely pale to intense or very dark. - ©GIA and Tino Hammid Any brownish or bronze-colored tints in an amethyst’s purple color, or any noticeable color zoning, …

这颗紫水晶产自 Namibia（纳米比亚）。 它为典型的水晶晶体：顶部为金字塔状的六面柱状晶体。 由 Fine Minerals International（精细矿产国际）的 Daniel Trinchillo（丹尼尔·特林赤罗）友情提供 紫水 …

GIA’s Guide to Gemstones: Gem Encyclopedia GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional …

Feb 1, 2014 · Known for its majestic purple color, amethyst is the gemstone of choice for those born in February. Breathtaking and surprisingly affordable, it’s also the most valued variety of quartz. If …