Sedimentaire gesteentes - Sandstone

Page / - last modified by TerraIndex TerraIndex on 2021/09/30 15:18

Sandstone

last modified by TerraIndex TerraIndex

on 2021/09/30 15:18

Table of Contents

Sandstone is a sedimentary rock which consist of a variation of minerals and mainly sand grains with a diameter of 63 micrometer to 2 millimeter. The main mineral present in sandstone is quartz. This mineral causes the large hardness of this material and with this hardness it is easy distinguishable from limestone and clay stones. Its color can vary from yellow brownish to grey. (due to weathering) If iron is present in this rock type it will give a red color.

Formation

The grains of sand in a sandstone are usually particles of mineral, rock, or organic material that have been reduced to "sand" size by weathering and transported to their depositional site by the action of moving water, wind, or ice. Their time and distance of transport may be brief or significant, and during that journey the grains are acted upon by chemical and physical weathering.

If the sand is deposited close to its source rock, it will resemble the source rock in composition. However, the more time and distance that separate the source rock from the sand deposit, the greater its composition will change during transport. Grains that are composed of easily weathered materials will be modified, and grains that are physically weak will be reduced in size or destroyed.[2]

References

NEN-EN-ISO 14688-1:2019

https://geology.com/rocks/sandstone.shtml

Sandstone

Group	Clastic sedimentary rock
Texture	Coarse grained
Clasts	0.06mm-2mm
Hardness	Very hard
Color	Brown, yellow, red, grey, pink, white, black or something in between
Minerals	Quartz or feldspar
Touch	Rough
Image	Sandstone

Contents

Formation

References

Sandstone