Hamlet meteorite, Starke Co., Indiana, USA
This page is currently not sponsored. Click here to sponsor this page.
|Latitude & Longitude (WGS84):||41° 22' 59'' North , 86° 36' 0'' West|
|Latitude & Longitude (decimal):||41.38333,-86.60000|
|Non-native locality type:||Meteorite|
|Meteorite Class:||LL4 chondrite meteorite|
|Meteoritical Society Class:||LL4|
|Metbull:||View entry in Meteoritical Bulletin Database|
|Köppen climate type:||Dfa : Hot-summer humid continental climate|
Ordinary chondrite, brecciated (LL4; S4; W0,W2)
Fell, 13 October 1959; 3.705 kg
A 2.045 kg conical stone stuck a home and was found in the yard 30 minutes later. A second stone was recovered from a farm pasture in 1963. The stone is a clearly brecciated meteorite with diverse clasts that are both chondrule-rich and recrystallized within a chondritic host. Chondrules, both olivine-rich and pyroxene-rich (BO, PO, POP, RP) range in size from ~ 0.4—1.5 mm. Olivine (Fa22) and orthopyroxene are dominant with Fe-Ni metal, troilite, and a few other minor opaques. Total iron (~20 wt%) is characteristic of the LL ordinary chondrite group (very low in total iron). The unexpected presence of nepheline indicates some unusual chemistry for this particular meteorite. A cosmic ray exposure age of ~ 40.6 Ma has been reported.
Hamlet is one of only 88 witnessed LL falls and one of only 7 falls listed exactly as an LL4 with The Meteoritical Bulletin Database (Tally of late January 2016). The LL group of ordinary chondrites account for somewhat less than 10% of all meteorite falls.
Major portions of the two stones have been kept at the Field Museum of Natural History (Chicago) and the U.S. National Museum (Washington), respectively.
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
12 valid minerals.
Meteorite/Rock Types Recorded
Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Krinov, E. L. - Editor (1960) The Meteoritical Bulletin, No. 17. Moscow.
Krinov, E. L. - Editor (1965) The Meteoritical Bulletin, No. 34. Moscow.
Mason, B. (1963) Olivine in ordinary chondrites. Geochimica et Cosmochimica Acta 27(9): 1011-1023. (Sept 1963).
Fuchs, L.H. (1968) X-ray crystallographic evidence for the meteoritic occurrence of nepheline. Earth and Planetary Science Letters 5(3): 187-190.
Fuchs, L.H. (1969) The Phosphate Mineralogy of Meteorites: IN: Meteoritic Research: Millman, P.M.-Ed.: pp. 683-695.D. Reidel Publishing Company: Dordrecht-Holland.
Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Rubin, A. (1990) Olivine & Kamacite in Ordinary Chondrites: Intergroup and Intragroup relationships. Geochimica et Cosmochimica Acta 54: 1217-1230.
Rubin, A.E. (1994) Metallic copper in ordinary chondrites. Meteoritics 29 (1): 93-98. (Jan 1994).
Dunn, T.L., Cressy, G., McSween Jr, H.Y. & McCoy, T.J. (2010) Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances. MAPS 45(1):123-134. (Jan 2010).
Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
Grady, M.M., Giovanni Pratesi, G. & Moggi-Cecchi. V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.