ungrouped enstatite chondrite | agglomeration of particles, many of which record individual, diverse histories | zero | in volume % | in weight % | oldest and most primitive rock in solar system | in volume % | | usually plagioclase tectosilicate | in weight % | strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity | based on the locale, region, or nearby town in which the fall occurred | definition goes here | in volume % | small sphere of about 1 mm diameter of formerly melted minerals | highly reduced with very little FeO | 234 kg | definition goes here | less than 950 degree Celsius during its entire history since solidification | asteroid smaller than 100 km in diameter | fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents | in volume % | which depends on degree of aqueous alteration and thermal metamorphism | in weight % | enstatite chondrite | | 0 % by weight (approximately) | 16 | E chondrite | millimeters |
LEW 97223 | agglomeration of particles, many of which record individual, diverse histories | zero | in volume % | in weight % | oldest and most primitive rock in solar system | in volume % | Antarctic meteorite | usually plagioclase tectosilicate | in weight % | Lewis Cliffs, Antarctica | LEW 97223 | definition goes here | in volume % | small sphere of about 1 mm diameter of formerly melted minerals | highly reduced with very little FeO | 485755 kg | definition goes here | less than 950 degree Celsius during its entire history since solidification | asteroid smaller than 100 km in diameter | fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents | in volume % | which depends on degree of aqueous alteration and thermal metamorphism | in weight % | | 1997 | 0 % by weight (approximately) | 1691 | E chondrite | millimeters |