Author : Jack Hobart
Publisher : Unknown
Page : 88 pages
File Size : 53,7 Mb
Release : 2016-05-01
Category : Electronic
ISBN : 1944564039
Lake Superior Copper Agates by Jack Hobart Pdf
Lake Superior Copper Agates, Introducing the World's Most Spectacular Agates , the first book about these unique agates. They have only been actively collected for little more than ten years. Nearly all come from portions of three 100-year old copper mine tailings in the Keeweenaw of Northern Michigan.Not only have their agate patterns changed to pure, glittering copper, some of them even include metallic silver! In a few, individual copper bands can extend outside their host matrix by half an inch! Some appear to have agate eyes and banding that is etched in nodules of pure copper.There is so much associated mineralization, that colors and patterns are far more varied than in other Lake Superior agates. They can even include gem quality chlorastrolite, the state gemstone of Michigan.The book has 20 chapters, including agate types never seen before. Many pictures show reflections from their glittering copper regions. Even agates without visible copper have minerals, crystal structures and geodes seldom seen in other agates. There are so many eyes that its chapter on eye agates is quite small, deferring a more complete coverage to the companion book, Copper Agate Eyes.Since there are significant difference in agates from the three nearby mines, each image lists its origin as well as its dimensions.This photo-filled book includes enough text to explain the features, but the words don't get in the way of the photography. It is complemented by the website: mudpot.com, enabling its content to be kept up to date. The website also contains slideshows, a simulation of seeing copper agates for the first time and a tribute to John Perona, the miner who first discovered these agates and had them to himself for decades. The goal is to make it a fun experience.
