Holy Ice by Frank Dorland, published by Galde Press, is an excellent account of the role quartz crystals have played throughout history. This book gives a scientific approach to the uses of quartz crystal in terms one can easily understand and practice.

《圣洁的冰》一书，作者弗兰克 道尔兰德，由Galde出版社出版，是一个对石英水晶历来所扮演的角色的杰出说明。本书从人们易于理解和实践的角度阐释了如何使用石英水晶的科学方法。

"Holy Ice" is no longer in print and selling used on the Internet for up to $159.00.

《圣洁的冰》一书已经绝版，只在网上有二手书卖，价格高达159美元。

——L&L&L 译

freelance art conservator and restorer

author of Crystal Healing

自由的艺术品保护者和收藏者

另外是《水晶疗法》的作者