Orthoclase

Orthoclase, is an important tectosilicate mineral which forms igneous rock. The name is from the Greek for “straight fracture,” because its two cleavage planes are at right angles to each other.

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  • Orthoclase Feldspar

    (May differ to photo) Sale! £2.97

    SIZE: 30-50mm (Range)

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  • Plagioclase Feldspar

    (Actual as seen) Sale! £2.97

    SIZE:   65 x 59 x 42mm
    (2.56 x 2.32 x 1.65 inches)

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