Websterite
Websterite is ultramafic igneous rock that consists of roughly equal proportions of orthopyroxene and clinopyroxene. It is a type of pyroxenite.
![](../I/Peridotite_Olivine-Orthopyroxene-Clinopyroxene_Websterite_highlighted.svg.png.webp)
Websterite highlighted in a ternary diagram
![](../I/Layered_Websterite_in_Basement_Sill_in_McMurdo_Dry_Valleys_in_Antarctica.jpg.webp)
Cumulate layers of websterite in the McMurdo Dry Valleys in Antarctica
Websterite is named after the town Webster in North Carolina.[1]
References
- Rogers, Nick; Stephen Blake; Kevin Burton; Mike Widdowson; Ian Parkinson; Nigel Harris (2008). An introduction to our dynamic planet. Cambridge: Cambridge Univ. Press. ISBN 978-0521494243.
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