艾达山
Arkansas, USA
斯威特沃特地区位于美国阿肯色州瓦希托山脉——环绕艾达山的『世界水晶之都』——是透明水晶的首要产地。
Part of the Ouachita quartz belt
The Ouachita Mountains of west-central Arkansas, around Mount Ida, form one of the world's most important rock-crystal quartz regions, productive for more than 150 years. Mines across Garland, Montgomery, and neighbouring counties yield clear, well-terminated quartz.
What collectors look for
Water-clear single crystals and quartz clusters with bright lustre and sharp terminations are the prize, along with occasional smoky and included crystals.