ABSTRACT
The Pleasures of Limestone such as granites and sandstones, do not possess to the same degree. Although light penetrates most limestones readily, it becomes scattered and diffused in passing from one grain to another. All dressed stones are characterized by their diffused or equal light, but limestones especially. The light does not go straight through them as through a piece of calcite, but rather, it illuminates somewhat the interior, thus causing the otherwise opaque rock to have a certain quality of glow. As a rule, sandstone is more porous: light does not penetrate far. The sandstone's distinguishing light-effect is a glitter more or less, to which each surface grain contributes. The granular structure of a rock largely determines its appearance. Two transparent and equally polished spheres of the same size, the one calcite, the other quartz, cannot be distinguished by the eye: compacted into stone, however, their difference is obvious.
