If a rock has bright surfaces or bands of light and dark layers, it is folly, which is a metamorphic texture that refers to flat or wavy flat features. … Ardo’s cleavage is characteristic of rocks with little intense metamorphism, in which minerals are not seen and which have easily separating blades.
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If a rock has bright surfaces or bands of light and dark layers, it is folly, which is a metamorphic texture that refers to flat or wavy flat features. … Ardo’s cleavage is characteristic of rocks with little intense metamorphism, in which minerals are not seen and which have easily separating blades.