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Home > Omarolluk

Omarolluk

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Omarolluk

Omarolluk

Omarolluk

A species of Sedimentary

Omarolluk is a type of glacial erratic composed of dark siliceous greywacke with hemispherical voids. The hemispherical voids arise from the selective dissolution of carbonate concretions within the greywacke. Originating from the Proterozoic Omarolluk Formation in the Belcher Islands of Hudson Bay, Canada, Omarolluks were transported by glaciers across central Canada and into the United States, making them valuable in understanding glacier movement.

Hardness:

6 - 7

General Info About Omarolluk

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Physical Properties of Omarolluk

Colors

Dark grey, black, brown, etc.

Magnetism

Potentially Magnetic

Grain Size

Coarse grained

Hardness

6 - 7 , Hard

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Characteristics of Omarolluk

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Common Questions People Also Ask

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