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rock > igneous rock > differentiated meteorite > differentiated achondrite > asteroidal achondrite > ureilite > LEW 87165
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LEW 87165 comparison table
Subject has weather resistance has reference has minerology is an instance of has distinguishing feature has fragmentation probability has olivine grain characteristic has likely origin has solidification mechanism has olivine composition has weather has letter designation has relative abundance has value has total mass of find has matrix composition has characteristic mineral has composition is a kind of has find date has number of find has origin has ablative mass loss has solidification timescale has pigeonite composition has definition has petrology
meteorite findwhich depends on its composition    during meteor phase which depends on composition    can be severe due to long exposure time to environmental corrosion agents  lower because the fall was not witnessed485755 kg  often minerals not found on Earthmeteoritewhen the meteorite was found1691meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimaldirectly proportional to initial velocity  a meteorite whose fall was not witnessed 
ureilitelow olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) no chondruleshigh because it is more friable than iron meteoritereduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metalpartial melting residuecooling in deep underground chambers  AURE7.1 % of meteorite falls 9 kg (out of date)carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volumeolivine-pigeonite about 90% by volumesilicates (with very few exceptions)ultramafic rock 6 (out of date)asteroidhigh because it is more friable than iron meteoritevery slow  coarse-grained granular
LEW 87165which depends on its compositionAMN 12-1, AMN 13-1olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite)meteorite findno chondrulesduring meteor phase which depends on compositionreduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metalpartial melting residuecooling in deep underground chambersFo% 85can be severe due to long exposure time to environmental corrosion agentsAURE lower because the fall was not witnessed9 kg (out of date)carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volumeolivine-pigeonite about 90% by volumeoften minerals not found on Earth when the meteorite was found6 (out of date)meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimaldirectly proportional to initial velocityvery slowFs% 13 ? coarse-grained granular

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