Hi list!!!! I was checking my collection and all the new african meteorites in the market, I ve seen that a scale to measure the grade of weathering meteorites I have, well I have the basi knowledge of that, Ie seen meteorite from W1 to W4, I know that 3 and four is very wheahtered, but at what point of weathering grade does the meteorite in completely rusted or terrestrialized???, also at what point are the meteorites characteristics destroyed?, because I want to get new types of meteorites that I dont have, but I would like somewhat fresh specimens, not an H3 that is weathered and destroyed by weathering.

I heard that Weathering Grade is explained in the New book of Cambridge Encyclopedia of meteorites, but I dont have it :(, and no one in my city that I know have it. Thanks list...

2001 Space Collection
Rafael B. Torres

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