.823 grams 10mm crusted individual Chelyabinsk Meteorite (LL5) Russia 2014

Description

Name:
Chelyabinsk
This is an OFFICIAL meteorite name.
Abbreviation:
There is no official abbreviation for this meteorite.
Observed fall:
Yes
Year fell:
2013
Country:
Russia
Mass:
1 t
Chelyabinsk
54°49’N, 61°07’E (approximate centroid)
Chelyabinskaya oblast’, Russia
Fell: 15 Feb 2013; 3:22 UT            Classification: Ordinary chondrite (LL5)
History
: At 9:22 a.m. (local time) on February 15, 2013, a bright fireball was seen by numerous residents in parts of the Kurgan, Tyumen, Ekaterinburg and Chelyabinsk districts. Images of the fireball were captured by many video cameras, especially in Chelyabinsk. Residents of the Chelyabinsk district heard the sound of a large explosion. The impact wave destroyed many windows in Chelyabinsk and surrounding cities. Many people were wounded by glass fragments. A part of the roof and a wall of a zinc plant and a stadium in Chelyabinsk were also damaged. Numerous (thousands) stones fell as a shower around Pervomaiskoe, Deputatsky and Yemanzhelinka villages ~40 km S of Chelyabinsk. The meteorite pieces were recovered and collected out of snow by local people immediately after the explosion. The snow cover was about 0.7 m deep. The falling stones formed holes surrounded by firm snow. Largest stones reached the frozen soil. A stone may have broken the ice of Chebarkul Lake, located 70 km W of Chelyabinsk. Small meteorite fragments were found around the 8 m hole in the ice but divers did not find any stones on the lake bottom.
Chelyabinsk
,
recovery of additional masses
The main mass of the Chelyabinsk meteorite fell into Chebarkul lake and broke the ice, forming a 7 m hole  (54°57’33.74"N, 60°19’19.58"E). Numerous small fragments (0.5 to 1 g) were scattered around the hole on the snowy ice.  5 kg of meteorite samples were recovered from the lake bottom using magnets during the first month after the meteorite fell. Additionally, ~10 kg of meteorite fragments were recovered by local residents in the same way, but were not well documented. Underwater recovery operations between Sept. 5 and Oct. 16, 2013, retrieved eight additional meteorite fragments: the largest sample weighed ~540 kg, and the other seven fragments totaled 84.4 kg. The total mass of meteorite pieces recovered from the bottom of Chebarkul lake was therefore ~640 kg. Hence the total estimated mass of Chelyabinsk meteorite fragments recovered from the lake and collected in the strewn field on land is ~1000 kg.
State/Prov/County:
Chelyabinskaya oblast'
Date:
15 Feb 2013; 3:22 UT
Latitude:
54°49'N
Longitude:
61°07'E
Mass (g):
>100 kg
Pieces:
many
Class:
LL5
Shock stage:
S4
Weathering grade:
W0
Nice specimen for your collection.  Authenticity guaranteed.
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JOHN HUMPHRIES, P.O. BOX 310, TOMBSTONE AZ. 85638
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