Websterite

For the hydrous aluminium sulfate mineral "websterite", see Aluminite.
Websterite highlighted in a ternary diagram
Cumulate layers of websterite in the McMurdo Dry Valleys in Antarctica

Websterite is ultramafic igneous rock, a type of pyroxenite that has less than 5% olivine and roughly equal proportions of orthopyroxene and clinopyroxene.

Websterite is named after the town Webster in North Carolina.

References


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