From the Mountain to You- From the Rocky Mountains comes the hardest Red Flagstone in the world and it allows us to create the most natural looking benches that are so much more appealing than the man made look of concrete or Granite! Most benches you find online are imported from overseas where at Bergen Designs they are Made in the good old U.S.A.! Thanks for your support.
Colorado Red Flagstone is one of the highest quality Red Flagstones in the world making it a great resource for stone masons and building architects.
It is used as a structural stone in many applications outdoors and the hardness is due to millions of years of compression during the Permian Age. The high levels of silica and quartz give it a hardness rating stronger than marble.
Technical Properties- Colorado Red Sandstone/Flagstone
Absorption 3.0% C97
Compressive Strength 10,000-20,000 C170
Modules of Rupture 1000-3358 C99
Abrasion Resistance 8 C241
Specific Gravity / 2.523 Unit Weight / 157.40
(Silica/95.54%, Aluminum Oxide/1.96%, Iron Oxide/0.10%, Calcium Oxide/0.50%,
Magnesium Oxide/0.58%, Cobalt/0.08%, Copper/Trace)