San Gabriel Anorthosite Near Bradbury, California | The ...
The site was first discovered in 1902. The San Gabriel Anorthosite is a surface mining operation. Mine operations consist of surface workings extending 13, hectares (33, acres). There is one known shaft. The mining method is bench (berm). Mine capacity in 1979 was 6030 mt ore/day with a production unit cost of /mt ore.