This New is an economy collection of 6 commonly known metamorphic rocks. Metamorphic rocks are formed by pressure and heat that may or may not be influenced by the introduction of chemically active solutions. Each generous specimen is 1.25" to 1.50" and is contained in a resealable zip lock bag with a label
Metamorphic Rock Bag - 2226B - Collegiate Sports NCAA College Slippery Rock SRU The Rock Bags Sleeves
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