Sedimentaire gesteentes - Glauconite sand(stone)

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Glauconite sand(stone)

last modified by TerraIndex TerraIndex

on 2021/09/30 15:18

Table of Contents

Glauconite is a mineral existing within the mica-group

Definition

Glauconite is a mineral existing within the mica-group. This means that this mineral is a platy mineral which is very friable and has a very low weathering resistance. This mineral has a common blue-green color. This mineral is deposited in continental shelf marine depositional environments with slow rates of accumulation. Glauconite sand(stone) is also called green sand due to the presence of this mineral. Greensand forms in anoxic marine environments that are rich in organic detritus and low in sedimentary input. It could be fossil-rich due to the anoxic marine environment. It can be recognized very easily due to its green color and lithology.

Characteristics

Some factors on which it can be recognized:

The texture is clastic.

The clasts are visible with the naked eye and between 0.06 mm and 2 mm.

It is a medium hard rock with a toughness of 6-7.

Its color is green brownish.

Its clast compose of quartz or feldspar and glauconite is present.

It is rough to touch.

Glauconite sandstone

References

https://en.wikipedia.org/wiki/Glauconite

https://www.sandatlas.org/glauconite/

Glauconite sandstone

Group	Clastic sedimentary rock
Texture	Coarse grained
Clasts	0.06mm-2mm
Hardness	Medium hard
Color	green brownish
Minerals	feldspar or quartz and glauconite
Touch	Rough
Image	Glauconite sandstone

Contents

Definition

Characteristics

References

Glauconite sandstone