Name: SAN JUAN CAPISTRANO Place of fall: San Juan Capistrano, California, U.S.A. 33°29'05"N, 117°39'45"W. Date of fall: March 15, 1973, between midnight and 0400, Pacific Standard Time. Class and type: Stone. Olivine-bronzite chondrite (H6). Number of individual specimens: 2 Total weight: 56g Circumstances of fall: The largest piece, 50.5 g, penetrated the aluminum sheeting roof of a carport in a mobile-home park and was picked up on the carport floor several hours later. The second smaller fragment, 5.5 g, was discovered about one month after the fall in the gutter of the carport roof. Source
Title: The San Juan Capistrano meteorite Authors: Finkel, R. C., Marti, K., & Jones, R. E.
The San Juan Capistrano chondrite fell on 15 March 1973; the total recovered mass was 56 g. Electron microprobe, chemical and petrographic studies show it to be a member of the H group and of petrologic type 6. Rare gas studies show that only minor radiogenic gas loss has occurred and yield a K-Ar age of 4.6 x 10^9 years and a Kr-Kr exposure age of 29 x 10^6 years.