ALH 84025 Comparison Table

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rock > gravitationally separated rock > fractional crystallized rock > plutonic cumulate > dunitic wehrlite > brachinite > ALH 84025

Next Antarctic meteorite: ALHA 77005 Up: Antarctic meteorite, brachinite Previous Antarctic meteorite: ALH 84001

ALH 84025 comparison table

Subject has augite grain size has weather resistance has minerology is an instance of has distinguishing feature has fragmentation probability has fall location has likely origin has solidification mechanism has name has genesi has relative abundance has prototype has total mass of find has composition is a kind of has olivine grain size has find date has property has number of find has origin has ablative mass loss has solidification timescale has petrology

Antarctic meteorite which depends on its composition during meteor phase which depends on composition indicated by letters in the beginning of name 3 or 4 letter contracted from find location then last two digits of year then id number 485755 kg often minerals not found on Earth meteorite recovery year is first 2 numbers in name 1691 meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal directly proportional to initial velocity

brachinite low olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase no chondrules high because it is more friable than iron meteorite strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity metamorphosed chondrite, partial melting residue cooling in deep underground chambers based on the locale, region, or nearby town in which the fall occurred fractional crystallization 7.1 % of meteorite falls Brachina meteorite 1606 kg olivine and some clinopyroxene dunitic wehrlite formed by separation of molten rock in a gravity field 70 asteroid high because it is more friable than iron meteorite very slow medium- to coarse-grained equigranular

ALH 84025 up to 2.7 millimeters which depends on its composition olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase Antarctic meteorite no chondrules during meteor phase which depends on composition indicated by letters in the beginning of name metamorphosed chondrite, partial melting residue cooling in deep underground chambers ALH 84025 Brachina meteorite 485755 kg often minerals not found on Earth up to 1.8 millimeters 1984 formed by separation of molten rock in a gravity field 1691 meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal directly proportional to initial velocity very slow medium- to coarse-grained equigranular

Next Antarctic meteorite: ALHA 77005 Up: Antarctic meteorite, brachinite Previous Antarctic meteorite: ALH 84001

Subject	has augite grain size	has weather resistance	has minerology	is an instance of	has distinguishing feature	has fragmentation probability	has fall location	has likely origin	has solidification mechanism	has name	has genesi	has relative abundance	has prototype	has total mass of find	has composition	is a kind of	has olivine grain size	has find date	has property	has number of find	has origin	has ablative mass loss	has solidification timescale	has petrology
Antarctic meteorite		which depends on its composition				during meteor phase which depends on composition	indicated by letters in the beginning of name			3 or 4 letter contracted from find location then last two digits of year then id number				485755 kg	often minerals not found on Earth	meteorite		recovery year is first 2 numbers in name		1691	meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal	directly proportional to initial velocity
brachinite		low	olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase		no chondrules	high because it is more friable than iron meteorite	strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity	metamorphosed chondrite, partial melting residue	cooling in deep underground chambers	based on the locale, region, or nearby town in which the fall occurred	fractional crystallization	7.1 % of meteorite falls	Brachina meteorite	1606 kg	olivine and some clinopyroxene	dunitic wehrlite			formed by separation of molten rock in a gravity field	70	asteroid	high because it is more friable than iron meteorite	very slow	medium- to coarse-grained equigranular
ALH 84025	up to 2.7 millimeters	which depends on its composition	olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase	Antarctic meteorite	no chondrules	during meteor phase which depends on composition	indicated by letters in the beginning of name	metamorphosed chondrite, partial melting residue	cooling in deep underground chambers	ALH 84025			Brachina meteorite	485755 kg	often minerals not found on Earth		up to 1.8 millimeters	1984	formed by separation of molten rock in a gravity field	1691	meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal	directly proportional to initial velocity	very slow	medium- to coarse-grained equigranular