Appalachian oak flooring with a lightly textured surface for a more durable appearance. NATURAL BEAUTY MEANS NATURAL VARIATIONS. The patterns and color variations in a living tree are like all of nature—never repeated. Naturally occurring wood characteristics such as mineral streaks, knots, and variations in grain and color are not considered defects. Also, the color of your floor will change over time and with exposure to ultraviolet/natural light. As a result of these natural characteristics, the variation in electronically-viewed color representation, and the variations in printing, your newly installed Somerset floor will vary from samples or pictures shown.