Roll Overs:
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63.7 grams. Iron, IIIF
TKW 11.3 kg. Fall not observed. Found 1937, Clark County, Kentucky, USA.
From Buchwald:
The meteorite has repeatedly been included in age determinations, e.g., by Signer & Nier (1962), and it now appears to be one of those meteorites with longest exposure age, viz., 1440±55 million years (Voshage 1967).
Signer & Nier (1962) reported a total of 49 x 10-6 cm3 helium per gram while Bauer (1963) reported 55 x 10-6 cm3 /g. Only Deep Springs has been found to contain more helium. Wanke (1960a) examined the distribution of scandium-45 in the meteorite. On the basis of 10Be-36Cl determinations, Chang & Wanke (1969) estimated the terrestrial age to be about 600,000 years.
buchlink
Click to view larger photos #1 #2
Impactika
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Bernd Pauli 12/15/2019 3:18:38 PM |
Yes, Anne, thank you for this rare iron. There are only 9 of them listed. Clark County is one of them. Another one is Cerro del Inca: 11 grams in my collection! |
Meteorite tissint 12/15/2019 2:38:15 PM |
thanks anna black for this wonderful specimen very rare, and very beautiful |
Paladino vincenzino 12/15/2019 2:37:10 PM |
thanks anna black for this wonderful specimen very rare, and very beautiful |
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