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rock > meteorite > achondrite > primitive achondrite > ungrouped primitive achondrite

ungrouped primitive achondrite comparison table

Subject	has weather resistance	has sediment mechanism	has minerology	has age	fragment	survive fall if	is an instance of	has distinguishing feature	vaporize completely if	has fragmentation probability	be associated with	has fall location	has fall date	has impact angle	has likely origin	has name	has genesi	has relative abundance	shatter	has texture	has total mass of find	has peak temperature	has impact velocity	has parent body	has fall coordinate	has composition	has original mass	has monetary value	has part mineral	has number of find	has origin	has ablative mass loss	produce	have crater image	has fall map	has petrology
Divnoe	low	agglomeration of particles, many of which record individual, diverse histories	olivine, orthopyroxene, clinopyroxene, metal with some troilite and some sodic plagioclase	oldest and most primitive rock in solar system	during meteor phase	it fragments because smaller pieces with less mass are more easily slowed by the atmosphere	ungrouped primitive achondrite	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		ultrametamorphism, partial melting with some melt migration	Divnoe		7.1 % of meteorite falls	during impact phase		1606 kg	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	in degrees, minutes and seconds of lattitude and longitude	often minerals not found on Earth	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		70	meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal	high because it is more friable than iron meteorite	power outages and failures in electrical equipment due to EMP (electromagnetic pulse)		which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity	fine- to coarse-grained equigranular

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