[meteorite-list] Biggest Meteorites by Type

From: Jason Utas <meteoritekid_at_meteoritecentral.com>
Date: Wed, 9 Jun 2010 12:47:12 -0700
Message-ID: <AANLkTilwwo03xn3Bd_oan6jttNMuxkoETD-JbWo5N0ae_at_mail.gmail.com>

Hello Mike, All,
With regards to the smallest main mass of a given type, some messing
around with the Meteoritical Bulletin database turned this up:

http://tin.er.usgs.gov/meteor/metbull.php?sea=ung&sfor=types&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=mass&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal%20table&dr=&page=5

I used the search term "ung" and searched classifications, and then
sorted the results by weight. The smallest "type main mass" found on
earth would be the 0.6 gram ungrouped iron LaPaz Icefield 03916.
But the moon apparently has us beaten; according to the Bulletin, the
Bench Crater meteorite, an "Ungrouped C1," weighed less than 0.6 g,
though I haven't been able to find a weight for it anywhere online.

But...I don't think we should be looking at ungrouped meteorites as
"type main masses" on an individual basis. It's cheating! After all,
each ungrouped meteorite is the smallest of its type as well -- and
it's also the average weight for a meteorite of its type.

And for the list - I'm fairly certain that the largest Rumuruti at the
moment is a 1,206 gram fragment of NWA 978 (R3.8).

>From the desert...
Regards,
Jason

On Wed, Jun 9, 2010 at 12:22 PM, Greg Stanley <stanleygregr at hotmail.com> wrote:
>
> Mike:
>
> CR -un
>
> Tafassasset
>
> two stones at ~30 kg.
>
> I wonder what the smallest largest main mass of a meteorite type is?
>
> Greg S.
>
> ----------------------------------------
>> Date: Wed, 9 Jun 2010 15:09:34 -0400
>> From: meteoritemike at gmail.com
>> To: freequarks at gmail.com
>> CC: meteorite-list at meteoritecentral.com
>> Subject: Re: [meteorite-list] Biggest Meteorites by Type
>>
>> Hi Listees!
>>
>> I don't think I will go into all of the petrologic sub-grades like
>> LL3.5, etc. I'd love to, but I think that biting off more than I can
>> chew. Especially given how many sub-types there are.
>>
>> Here is a list of the known types and sub-types (at the end of this
>> post). Filling out the list to include the largest would take quite a
>> bit of time I think. So I think I will stick to the major types and
>> sub-types for the moment. :)
>>
>> Current updated list -
>>
>> Largest Meteorites :
>>
>> Largest carbonaceous CM1 - Moapa Valley - 691 g
>> Largest iron - Hoba - 60 MT
>> Largest chondrite - Jilin - 4 MT
>> Largest aubrite - Norton County - 1.1 MT
>> Largest Martian meteorite - Zagami - 18 kg
>> Largest Lunar meteorite - NWA 5000 / Kalahari 009 - 11.53 kg / 13.5 kg
>> Largest pallasite - Fukang - 1 MT
>> Largest angrite - D'Orbigny - 16.5 kg
>> Largest brachinite - NWA 4882 - 2.89 kg
>> Largest mesosiderite - Bondoc? - 888.6 kg
>> Largest CH - Acfer 366 - 1456 g
>> ----------------------------------------------------------------
>>
>> List of all known types and sub-types :
>>
>> Carbonaceous Chondrites :
>>
>> CI (Ivuna)
>> CM1 (Mighei)
>> CM2 (subdivided into CM2.0 to CM2.6)
>> CM3
>> CO3 (Ornans) (subdivided into CO3.03 to CO3.7)
>> CV (Vigarano) (also CV2 and CV3)
>> CK (Karoonda) (CK4, CK5, CK6)
>> CR (Renazzo) (CR1, CR2, CR3)
>> CB (Bencubbin)
>> CH
>> CR ungrouped
>> C2 ungrouped
>> C4 ungrouped
>> C ungrouped
>>
>> Ordinary Chondrites :
>>
>> Rumuruti R3 (subdivided into R3.5-6 to R3.9)
>> R4
>> R5
>> R6
>>
>> LL (subdivided into LL3.0 to LL3.9)
>> LL4
>> LL5
>> LL5/6
>> LL6
>> LL6/7
>> LL7
>> LL impact melt
>>
>> LL transitional (L/LL3 to L/LL6)
>> L (subdivided into L3.0 to L3.9)
>> L4
>> L5
>> L6
>> L6/7
>> L7
>> L impact melt
>>
>> H/L transitional (H/L3 to H/L6 IMB, H/L3.6 to H/L3-4)
>> H (subdivided into H3.0 to H3.9)
>> H4
>> H5
>> H6
>> H7
>> H impact melt
>>
>> ungrouped ordinary chondrites
>>
>> Enstatite Chondrites :
>>
>> EL (EL3 to EL7)
>> EL impact melt
>> EH/L
>> EH (EH3 to EH7)
>> EH impact melt
>> ungrouped enstatite chondrites
>>
>> K (Kakangari)
>>
>> Meta-chondrites (M-CV, M-CR, M-H, M-LL)
>>
>> Primitive Chondrites :
>>
>> Acapulcoite
>> Lodranite
>> Winonaites
>> ungrouped primitive chondrites
>>
>> Achondrites :
>>
>> Howardite (subdivided into fragmental breccia and regolith breccia)
>> Eucrite (monomict and polymict with each having subclasses)
>> Diogenite (monomict and polymict)
>> Olivine Diogenite
>> Dunite
>> Ureilite (monomict and polymict)
>>
>> Martian achondrites :
>>
>> Shergottite
>> Pyroxene-phyric basaltic shergottite
>> Olivine-phyric basaltic shergottite
>> Olivine-orthopyroxene-phyric basaltic shergottite
>> Pyroxene-peridotitic (Wehrlitic) shergottite
>> Lherzolitic shergottite
>> Diabasic shergottite
>> Nakhlite
>> Chassignite
>> Orthopyroxenite (ALH 84001)
>>
>> Lunar Achondrites :
>>
>> Feldspathic breccias
>> Regolith breccia
>> Fragmental breccia
>> Impact melt breccia
>> Granulitic breccia
>> Mafic-rich
>> Thorium-rich
>> KREEP-rich
>> Mingled Breccia
>> Mare Basalt
>>
>> Other Achondrites :
>>
>> Angrites (Plutonic and Basaltic)
>> Brachinite
>> Aubrite
>> ungrouped achondrites (Ibitira, Pasamonte, etc)
>>
>> Stony-Irons :
>>
>> Mesosiderites (1A,1B,2A,2B,2C,3A,3B,4A,4B)
>> ungrouped mesosiderites
>>
>> Pallasites (Main Group, Eagle Station group, Pyroxene group)
>> Pallasite-am (anomalous, PMG-am, PMG-as)
>> ungrouped pallasites
>>
>> Iron meteorites :
>>
>> Note, iron meteorites are a can of worms. I will only focus on the
>> main chemical groups, and not the various grouplets and sub-types of
>> each main chemical group. Also note that many of these types include
>> silicated varities. Listing all of the known sub-types of irons would
>> require a LONG list resembling a flow-chart.
>>
>> IAB
>> IC
>> IIAB
>> IIC
>> IID
>> IIE
>> IIF
>> IIG
>> IIIAB
>> IIIE
>> IIIF
>> IVA
>> IVB
>> ungrouped irons
>>
>>
>> On 6/9/10, Dark Matter ?wrote:
>>> World's largest meteorwrong...Ayers Rock
>>>
>>> http://members.virtualtourist.com/m/5704d/1c83c9/
>>>
>>> "Returning temporarily to science, some used to speculate that Uluru was a
>>> meteorite."
>>>
>>> Best,
>>>
>>> Martin
>>>
>>
>>
>> --
>> ------------------------------------------------------------
>> Mike Gilmer - Galactic Stone & Ironworks Meteorites
>> http://www.galactic-stone.com
>> http://www.facebook.com/galacticstone
>> ------------------------------------------------------------
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>
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Received on Wed 09 Jun 2010 03:47:12 PM PDT