Inner Mongolian quartz point pair Aquamarine These sandstone coasters are made

These sandstone coasters are made of Arizona Sierra sandstone sourced from central Arizona

The iron bands are harder than the surrounding sandstone and create ridges as the softer material is more quickly sandblasted away—just like the material would erode in nature

shedding pieces when handled

some material can phosphoresce for several minutes

Inner Mongolian quartz point pair Aquamarine These sandstone coasters are madeLocale: HuangGangLiang mining district, Inner Mongolia, China Approx point length: 2. 5" Approx weight: 36g These quartz points are from HuangGangLiang, and commonly called Mongolian or Inner Mongolian quartz. This isn't your typically shiny quartz; this pair of straight points is completely coated in a grainy matte white mineral crust. Where the crust is broken off, exposed beneath is more matte white! The piece appears dull but will glitter like