Browse Our Selection › Oligoclase Specimen, Approx. 1" (3cm) Image 1 of 2 Image 2 of 2 Oligoclase Specimen, Approx. 1" (3cm) $6.03 Oligoclase sample approximately 1" (3cm) in sizeStandard hardness of 6, exhibits two planes of cleavagePerfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence StatementsFeldspar with high levels of sodiumSpecimen comes in clear labeled and barcoded bag for ideal storage Quantity: Add To Cart Added! Oligoclase sample approximately 1" (3cm) in sizeStandard hardness of 6, exhibits two planes of cleavagePerfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence StatementsFeldspar with high levels of sodiumSpecimen comes in clear labeled and barcoded bag for ideal storage