Minerals and Metals in Ancient India v2.c43.s3.t3.3
Minerals and Metals in Ancient India v2.c43.s3.t3.3
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v2.c43.s3.t3.3
Quartz cat’s eye samples (hardness 7) show similar chatoyancy or a wave of milky light reflected from the surface, the effect in this case arising due to the presence of large number of fibres of asbestos aligned in a specific direction.