Agates of Lake Superior: Stunning Varieties and How They Are Formed Aventurine or an almost hickoryite orange

or an almost hickoryite orange and yellow swirl

By: Judy Hall

INT142db Intarsia Drilled Bead

Rough Rock

DRG142 Drilled Tabasco Geode features translucent blue-gray banded agate with a blue-gray druzy pocket

Agates of Lake Superior: Stunning Varieties and How They Are Formed Aventurine or an almost hickoryite orangeAgates of Lake Superior: Stunning Varieties and How They Are Formed By: Dan and Bob Lynch Each type of the Lake Superior region's agates are discussed in depth, with details ranging from characteristics and formation to distribution and rarity. Multiple photographs accompany each write up. Also includes a thorough explanation of agates and why they are unique, a critical look at agate formation theories, and tips on how to find and identify agates and