Lunar meteorites: Finally, a few anorthosites

UCLA Meteorite Gallery Lecture Series: December 2022
Title: Lunar meteorites: Finally, a few anorthosites
Lecturer: Dr. Paul Warren; UCLA
By some estimates, most of the Moon’s outsized crust consists of anorthosite, an igneous rock with more than 90% of the calcium-aluminum silicate mineral plagioclase. Plagioclase has an unusually low density, and the lunar crust is believed to have formed in a unique way by buoyant flotation of plagioclase over a global magma ocean. Some authors have even claimed the lunar-crustal plagioclase abundance is generally greater than 98%. Yet only within the past year were the first three anorthosite lunar meteorites discovered. I will discuss these new anorthosite meteorites and some other aspects of lunar rock studies that constrain the magma ocean hypothesis.
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[@meteoriteclassification]

Enjoyed hearing your lecture Paul! Nice to have met you at MetSoc this year.

[@HoboMinerals]

Thank you for sharing these videos!!

[@jamessalmon3604]

Thank you; this is interesting. James Salmon

[@cpsd7119]

Is there a way to contact you?

[@martinocole3211]

Hello, Paul
Just wondering, is there good evidence for the un-melted lunar core shown in the "cartoon" lunar cross sections? It would seem to be gravitationally unstable, as it became surrounded by denser melt including possible nickel-iron, and likely not yet tidally locked.

[@HoboMinerals]

Do you think you don’t have any or many because they probably look so Earth like? And are likely turned away or people are unsure about sending them in for testing?
Also, is there common twinning in the more “pristine” crystals

[@edwardm1497]

Emeritus Professor looked at my Rocks.
ARE, the rocks we find, part of our System?

[@urbanegolinebandogge6064]

It’s in my shorts

[@sergioelizalde7790]

I have meteoro how send pictures

[@user-bh7zq9sz1p]

Hello. A professional said that the diamond meteorite is heavy in weight compared to the size of the stone, and that it has small white or diamond-like grains all over it, and of course it is shiny, and that the veins of the stone are white and light up with the light inside this white stone, and the density is 3.1. That is, it is three and one to one and two tenths. Its absorption is very low, about 1%, and it does not absorb well. A color that is hard to express.. you can see the photo. Some friends have said that the meteorite is diamond and possibly Martian. I am a seller. Thankful
Hello. A professional said that the diamond meteorite is heavy in weight compared to the size of the stone, and that it has small white or diamond-like grains all over it, and of course it is shiny, and that the veins of the stone are white and light up with the light inside this white stone, and the density is 3.1. That is, it is three and one to one and two tenths. Its absorption is very low, about 1%, and it does not absorb well. A color that is hard to express.. you can see the photo. Some friends have said that the meteorite is diamond and possibly Martian. I am a seller. Thankful