brachinite | low | olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase | during meteor phase | it fragments because smaller pieces with less mass are more easily slowed by the atmosphere | no chondrules | size is between 3 micrometers and 3 millimeters | high because it is more friable than iron meteorite | crater | strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity | recorded by eyewitness or inferred from dating methods | | metamorphosed chondrite, partial melting residue | cooling in deep underground chambers | based on the locale, region, or nearby town in which the fall occurred | fractional crystallization | 7.1 % of meteorite falls | during impact phase | | Brachina meteorite | 1606 kg | when it hits the ground which is smaller than its velocity before it enters the atmosphere | in degrees, minutes and seconds of lattitude and longitude | olivine and some clinopyroxene | which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site | large if the fall was witnessed | dunitic wehrlite | | formed by separation of molten rock in a gravity field | 70 | asteroid | high because it is more friable than iron meteorite | power outages and failures in electrical equipment due to EMP (electromagnetic pulse) | very slow | | which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity | medium- to coarse-grained equigranular |