Oligoclase Specimen, ±1" in size, Pack of 12

Details

Oligoclase sample, approximately 1 inch (3cm) in size, has a standard hardness of 6 and exhibits two planes of cleavage. This perfect-sized specimen is ideal for use in classroom identification labs and exercises, correlating well to Next Generation Science Standards Evidence Statements. As a type of feldspar with high levels of sodium, it provides an excellent learning opportunity. The specimen comes in a clear, labeled, and barcoded bag, making storage easy and convenient. Pack of 12.