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breccia comparison table
Subject has weather resistance has metal abundance has part mean Ni content of sulfide has degree of shock metamorphism has age fragment has refractory inclusion abundance has shock stage survive fall if vaporize completely if has part feldspar has fragmentation probability has part metal maximum bulk be associated with has fall location has fall date has impact angle has metamorphism mechanism has degree of secondary process has name has shock diagnostic mineral is independent of has olivine shock metamorphism has chondrule glass type be shock has homogeneity of olivine and low Ca pyroxene has chondrule abundance has relative abundance shatter has part chondrule has total mass of find has structural state of low Ca pyroxene has peak temperature has impact velocity has plagioclase shock metamorphism has orthopyroxene shock metamorphism has parent body has part matrix has fall coordinate has matrix abundance has petrologic type range has part carbon has composition has monetary value has original mass has part water has origin has number of find has ablative mass loss produce has shock pressure has chondrule mean diameter have crater image has fall map
brecciated chondritewhich depends on its compositionin volume %in weight %from unshocked to whole rock meltedoldest and most primitive rock in solar systemduring meteor phasein volume %from unshocked S1 to shock meltedit fragments because smaller pieces with less mass are more easily slowed by the atmospheresize is between 3 micrometers and 3 millimetersusually plagioclase tectosilicateduring meteor phase which depends on compositionin weight %craterstrewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocityrecorded by eyewitness or inferred from dating methods shock metamorphismproviding insight into geological evolution of parent asteroidbased on the locale, region, or nearby town in which the fall occurredorthopyroxene for enstatite chondritethe nature and degree of thermal metamorphism or aqueous alterationvisual characteristics of single crystals in polarizing microscope before, during or after other types of metamorphismdefinition goes herein volume % during impact phasesmall sphere of about 1 mm diameter of formerly melted minerals485755 kgdefinition goes hereless than 950 degree Celsius during its entire history since solidificationwhen it hits the ground which is smaller than its velocity before it enters the atmospherevisual characteristics of single crystals in polarizing microscopevisual characteristics of single crystals in polarizing microscopeasteroid smaller than 100 km in diameterfine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituentsin degrees, minutes and seconds of lattitude and longitudein volume %which depends on degree of aqueous alteration and thermal metamorphismin weight %often minerals not found on Earthlarge if the fall was witnessedwhich can over an order of magnitude greater than total mass of fragment(s) collected at the impact sitein weight %meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal1691directly proportional to initial velocitypower outages and failures in electrical equipment due to EMP (electromagnetic pulse)the equilibration peak shock pressure in GPa (gigapascals) for ordinary chondrites onlymillimeters which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity
fragmental breccia                                                      
granulitic breccia                                                      
impact melt breccia                                                      
monomict breccia                                                      
polymict breccia                                                      
primitive breccia                                                      
regolith agglomerates                                                      
regolith breccia                                                      

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