Phenocrysts are types of igneous rocks that contain characteristic crystal formations. Â Some crystals are small while others grow very large, and these crystals are typically separated from each other by fine grains of the typical,&hellip
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Why mood rings change color?
The mood rings were invented by Joshua Reynolds. These rings gained fame in the 1970s and are in use even today. The ring has a stone which will change its color according to the emotional&hellip