LEW 88180 | agglomeration of particles, many of which record individual, diverse histories | which depends on its composition | zero | 8 % by volume | in weight % | the range over at which the alteration took place | oldest and most primitive rock in solar system | during meteor phase | 0.1 to 1 % by volume | it fragments because smaller pieces with less mass are more easily slowed by the atmosphere | EH6 chondrite | high | homogeneous | size is between 3 micrometers and 3 millimeters | secondary, grains greater than 50 microns | during meteor phase which depends on composition | in weight % | crater | strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity | recorded by eyewitness or inferred from dating methods | | thermal metamorphism | providing insight into geological evolution of parent asteroid | based on the locale, region, or nearby town in which the fall occurred | | devitrified, absent | definition goes here | 60 to 80 % by volume | | during impact phase | | chondrules poorly defined | highly reduced with very little FeO | 59 kg | orthorhombic | less than 950 degree Celsius during its entire history since solidification | when it hits the ground which is smaller than its velocity before it enters the atmosphere | asteroid smaller than 100 km in diameter | transparent, recrystallized, coarse crystals | strong | less than 2 to 15 % by volume | which depends on degree of aqueous alteration and thermal metamorphism | in degrees, minutes and seconds of lattitude and longitude | less than 0.2 % by weight | 3 to 5 | greater than 20 % by weight, kamacite and taenite in exsolution relationship | often minerals not found on Earth | large if the fall was witnessed | which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site | | less than 1.5 % by weight | meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal | 8 | directly proportional to initial velocity | power outages and failures in electrical equipment due to EMP (electromagnetic pulse) | E chondrite | 0.2 millimeters | | less than 0.5 % by weight | which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity |