Witherite/Calcite on Fluorite (Illinois)

Yet another reason to come to the Rock Sale on Saturday...

Pyrite on Calcite

Selenite Roses

For sale on September 29.

Gypsum sand Crystals

Like this rock?  It can be yours.... just come to the Rock Sale and buy it!  Wheaton College Science Center, September 29, 2012!

Calcite on Cinnabar from Chihuahua Mexico

Adamite

Adamite

Hemimorphite from Chihuahua, Mexico

Hemimorphite from Chihuahua, Mexico - another item for sale at the Rock Sale on Saturday, September 29, 2012.