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rock > igneous rock > differentiated meteorite > differentiated achondrite > asteroidal achondrite > aubrite > Mount Egerton

Mount Egerton
subject			fact

Mount Egerton	has image
	is an instance of ungrouped stony iron meteorite
	has name Mount Egerton
	has find date 1941
	has fall location Mount Egerton, Gascoyne River, Western Australia
	has fall coordinates Latitude 24 degrees 46 minutes South, Longitude 117 degrees 42 minutes East
	have composition enstatite crystals up to 8.5 cm x 5 cm x 2.8 cm
	has image
	is an instance of aubrite
	is an instance of meteorite find
	has name Mount Egerton
	has find date 1941
	has fall coordinates 24° 53' S., 117° 38' E.
	has fall location Mount Egerton, Australia
	has mass 1.7 kg
	has weathering stage extreme
ungrouped stony iron meteorite	has total mass of finds 225 kg
	has number of finds 6
aubrite	has letter designation AUB
	has characteristic mineral enstatite
	has total mass of finds 1205 kg
	has number of finds 9
	has minerology enstatite, forsterite, sodic plagioclase, metal, numerous sulfides
	has petrology breccias of igneous lithologies
	has likely origin melted and crystallized residues from partial melting
meteorite find	has value lower because the fall was not witnessed
	has weathering can be severe due to long exposure time to environmental corrosion agents
stony iron meteorite	has distinguishing feature mixture of iron-nickel alloy and non-metallic minerals
	has relative abundance 1.5 % of meteorite falls
asteroidal achondrite	has origin asteroid
highly reduced meteorite	has oxidation state highly reduced with very little FeO
meteorite	has fall date recorded by eyewitness or inferred from dating methods
	has fall map which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity
	can have crater image
	has original mass which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site
	has composition often minerals not found on Earth
	has relative abundance
	has impact velocity when it hits the ground which is smaller than its velocity before it enters the atmosphere
	has impact angle
	has weather resistance which depends on its composition
	has monetary value large if the fall was witnessed
	often produce power outages and failures in electrical equipment due to EMP (electromagnetic pulse)
	can be associated with crater
	has origin meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
	vaporizes completely if size is between 3 micrometers and 3 millimeters
	can survive fall if size is larger than 3 mm and velocity is less than 24 km per second
	can survive fall if it fragments because smaller pieces with less mass are more easily slowed by the atmosphere
	has ablative mass loss depending on composition, more friable stony meteoroids loses more mass than iron meteoroid
	has ablative mass loss directly proportional to initial velocity
	can shatter during impact phase
	can fragment during meteor phase
	has fragmentation probability during meteor phase which depends on composition
metal-rich meteorite	has metal content higher than that of average solar system material
	has nickel content always greater than 4 %
rock	has part mineral
	has texture
	has genesis
igneous rock	has solidification mechanism
	has solidification timescale

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