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These calendars have pictures of some of the most beautiful agates and jaspers in the world
Let your youngest rockhounds dig for 10 real rocks and minerals
This specimen features light pink and dark pink banded agate with a small quartz center
light pink
The spots are formed through devitrification when molecules within glass (which has no crystal structure) change their structure and crystallize
Copper Heart 1" - small Polished Pebbles These calendars have pictures ofMichigan's Keweenaw Peninsula is considered the most important locality in the world for pure native copper Mining began in 1845 and continued through 1982, and over 7 million tons of refined copper were recovered from the mines. At the turn of the 20th century it led the world in copper production and "Lake Copper" was the purity standard. The chemical symbol for copper is Cu. Shiny copper heart 1. 75" wide
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