The rapid formation and collapse of tiny bubbles within the cavities of a solid material immersed in liquid, altogether subjected to rapid and intense pressure changes induced by ultrasonic waves
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Category: <span>C</span>
A type of colloidal aluminum silicate clay from British Columbia, Canada
Refined metals in the form of a plate, rod or bar
A large and significant region of Precambrian rocks in eastern Canada
A recess in the floor of a mine designed to prevent the leakage of minerals.
The oldest system into which the Paleozoic rock is classified
An optical phenomenon of certain minerals when reflected light, in a patterned or silky sheen is concentrated in a narrow band that changes position and sometimes colour with movement
Hole containing explosive material set to be detonated
Sample material reflective of the deposit, obtained from a channel or trench
The mine building where workers change into uniforms and safety equipment