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Hinkley
Basic information Name: Hinkley
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: United States
Mass:help 12.6 g
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 6033 approved meteorites (plus 11 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 29 May 2021
Writeuphelp
Writeup from MB 110:

Hinkley        34°59.12’N, 117°7.98’W

California, United States

Find: 2021 Feb 12

Classification: Ordinary chondrite (H4)

History: On February 12, 2021, while searching for meteorites, Robert Verish found in gravel (between two blow-outs) a weathered, granular fragment of a stony meteorite.

Physical characteristics: Initially considered to be a porous basalt because of a lack of a fusion-crust and a grayish-black groundmass that was sparkly. Recognized as a possible meteorite due to a solitary white chondrule, standing-out in high-relief, along the edge.

Petrography: (D. Sheikh, FSU) Specimen is a chondrite containing chondrules (~500±100 µm), Fe-Ni metal, Fe-oxides, and chlorapatite.

Geochemistry: Olivine (Fa19.0±0.4, range Fa18.2-19.4, n=10), Low-Ca Pyroxene (Fs17.0±0.6 Wo1.6±0.1, range Fs16.2-19.3 Wo1.0-1.8, n=24).

Classification: Ordinary chondrite (H4).

Specimens: 3.2 grams at UCLA; main mass with Verish.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:California
Origin or pseudonym:Blow-out
Date:2021 Feb 12
Latitude:34°59.12'N
Longitude:117°7.98'W
Mass (g):12.6
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W4
Fayalite (mol%):19.0±0.4
Ferrosilite (mol%):17.0±0.6
Wollastonite (mol%):1.6±0.1
Classifier:D. Sheikh, FSU
Type spec mass (g):3.2
Type spec location:UCLA
Main mass:Verish
Finder:Robert Verish
Comments:Field ID = USA210212 ; Lab ID = V-H-21; submitted by Daniel Sheikh
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)
Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Photos:
CreditPhotos
Public domain photographs:
Daniel Sheikh                        
Geography:

United States
Coordinates:
     Recommended::   (34° 59' 7"N, 117° 7' 59"W)

Statistics:
     This is 1 of 268 approved meteorites from California, United States (plus 24 unapproved names)
     This is 1 of 1881 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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