Barringer Crater
I.M.C.A #2215

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Sikhote Alin 7.2g Oriented Individual
[Item #S7]

Note the clear flow lines and rolloverlip

Regmaglypted backside

Spectacular oriented Sikhote Alin with beautiful flowlines and sharp-as-a-pin rollover lipping. This is one fantastic specimen.

Here is some specific information about Sikhote Alin meteorites:

"The ratio between the diameter of the regmaglypts and of the fragments ranges from 0.05 to 0.25, with the majority giving 0.08-0.10, for specimens 5-45 cm in size."


BUCHWALD V.F. (1975) Iron Meteorites (UCLA, 1975, Vol.3, pp. 1123-1130).

BUCHWALD V.F. (1975) Iron Meteorites
(Univ. of California, 1975, Vol.1 , p. 18 / Vol. 3, p. 1126):

Date of fall: Feb 12, 1947
Time: 10.38 a.m. (local time)
Direction: N => S (10-15 east of north)
Initial inclination: 41
The initial declination had increased to 60-70 at the time of impact (zenith angle about 49).
Apparent diameter of the bolide: 600m (with its luminous envelope).
Length of smoke trail: 33 9 km
Dust trail observed for several hours.
Brightness of bolide: exceeded that of the sun (about - 26)
Point of complete breakup: 4 - 6 km (Hemmungspunkt)
Initial velocity: 14.5 km/s
Geocentric velocity: 9.2 km/s
Heliocentric velocity: 37 km/s
Preatmospheric mass: 1000 t
Radius of light and sound phenomena: 300 - 400 km
Largest fragment: 1.745 kg
Specimens collected: 8.500
Total weight: > 23 tons
It is estimated that a total of 70 tons fell, including dust.
Impact holes: 122 ( 0.5 - 26 m/ 1 - 12 m)
Scatter ellipse: 1.6 km^2 ( N => S = 2.1 km /E => W = 1.0 km )
A smaller ellipse of 0.75 x 0.30 km was found to exist.
Final velocities: 0.1 - 1 km/s

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