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polymict breccia comparison table
Subject has weather resistance has sediment mechanism has minerology fragment survive fall if has distinguishing feature vaporize completely if has fragmentation probability be associated with has fall location has olivine grain characteristic has fall date has impact angle has likely origin has solidification mechanism has name has genesi has letter designation has relative abundance shatter has texture has total mass of find has pronunciation has impact velocity has matrix composition has fall coordinate has characteristic mineral has composition has original mass has monetary value is a kind of has part mineral has number of find has origin has ablative mass loss produce has solidification timescale has plagioclase has lithic clast composition has definition have crater image has fall map has petrology
polymict ureilitelow olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite)during meteor phaseit fragments because smaller pieces with less mass are more easily slowed by the atmosphereno chondrulessize is between 3 micrometers and 3 millimetershigh because it is more friable than iron meteoritecraterstrewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocityreduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metalrecorded by eyewitness or inferred from dating methods partial melting residuecooling in deep underground chambersbased on the locale, region, or nearby town in which the fall occurred AURE7.1 % of meteorite fallsduring impact phase 9 kg (out of date)bre - chiawhen it hits the ground which is smaller than its velocity before it enters the atmospheresmaller mineral fragments, carbon, suessite (Fe3Si), sulfides, minor chromite and minor apatitein degrees, minutes and seconds of lattitude and longitudeolivine-pigeonite about 90% by volumesilicates (with very few exceptions)which can over an order of magnitude greater than total mass of fragment(s) collected at the impact sitelarge if the fall was witnessedpolymict breccia 6 (out of date)asteroidhigh because it is more friable than iron meteoritepower outages and failures in electrical equipment due to EMP (electromagnetic pulse)very slowcommon in claststypical monomict ureilite material plus a variety of other lithic clastsfragmental breccias containing lithic clasts of typical monomict ureilite material plus a variety of other lithic clasts which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocitycoarse-grained granular

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