Good price on these!

The card insert tells about the three primary groups of rocks/minerals: Sedimentary, Igneous and Metamorphic, and describes how the rocks/minerals in each group is formed.

M903 - Mineral Collection, 18 pieces, Identified specimens.

A collection of 18 different rock/mineral specimens in individual bags with
identification cards describing the type minerals. A great starter
collection. It's also a great tool for teachers. Set also has a 4-1/2
X magnifier for close inspection of the specimens.
Most specimens has the hardness written on the card. A great gift item for the teacher or budding rockhound. Specimens include:

Agate
Alabaster
Amazonite
Calcite
Copper ore
Fluorite
Fossiliferous limestone
Gold ore
Jasper
Lava
Lepidolite
Marble
Obsidian
Pumice
Pyrite (Fools gold)
Quartz
Selenite
Variscite


Weight: Each set weighs about 12 ounces.