AyrtR - Thomsonite Traditional Cache

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bretina: Time for this series to go to make way for a new "Fallback" series!

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Hidden : 10/13/2016
Difficulty:
2.5 out of 5
Terrain:
4 out of 5

Size: Size: regular (regular)

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Geocache Description:

Thomsonite
Thomsonite was created from lava flows of the Keweenawan Period, over 600 million years ago. Gases within the lava seams between the lava flows turned into hollow pockets when the lava hardened. Over hundreds of thousands of years, these hollow openings filled and solidified, forming Thomsonite.

The unique combination of volcanic activity and certain chemicals and minerals is responsible for why the gemstone formed in this location along the North Shore. In Michigan, it can be found on Isle Royal.
(AyrtR) Michigan Stones & Gems - 2016 Fallback Gathering Series
Verde Marble Thomsonite Prehnite Petoskey Stone
Leland Blue Lake Superior Agate Kona Dolamite Jasper
Hematite Halite Greenstone Copper
Charlevoix Stone

Additional Hints (Decrypt)

Cnvagrq cynfgvp evpr wne frg vagb onfr bs gerr nobhg n sbbg bss gur tebhaq.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)


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