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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rahul kumar Best Answer
Answer (b) Diopside Diopside is a type of Pyroxene. Pyroxene minerals have two sets of cleavage at 90° and eight sided basal section. Hornblende minerals have two sets of cleavage at 120°. Sanidine is a type of feldspar and calcite have rhombohedral cleavage.
But sanidine also has cleavages intersecting at 90 degrees right? Sir please correct me if I m stating wrongly.