Interesting Rocks and Minerals
Here are a few interesting rocks and minerals from my collection.
Castile Formation
Evaporites from Western Texas
Banded Iron Formation
Upper Peninsula, Michigan
Liesegangen bands
Big Cottonwood Canyon, Utah
Pisolites
Guadalupe Mountains, Western Texas
Gowganda Formation
Glacial till, Grand Rapids, Michigan
"Mudstones"
Glacial till, lower Michigan
Pegmetite dike
Big Thompson canyon, Colorado
Topaz
Topaz Mountain, Central Utah
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Last updated 8/30/01
