The Proceedings of the Eighth International Conference on Creationism (2018)

Whitmore and Strom ◀ Angular K-feldspars in ancient sandstones ▶ 2018 ICC 632 Figure 4. Examples of thin sections from the Coconino Sandstone, Arizona. Both angular and rounded grains can be found in the sandstone. Some of the mineral grains are labeled as follows: (K) K-feldspar and (M) muscovite. Quartz is white. The blue color is epoxy. The samples have been stained so K-feldspar is yellow.