Specimen data for Ferrohornblende

Tom Mortimer catalog number: 1462

Identification method: EDS analysis.

Na (1.04 KeV) = 58; Mg (1.24) = 365; Al (1.49) = 256; Si (1.74) = 2025; K (3.31) = 113; Ca (3.69) = 657; Mn (5.90) = 239; Fe (6.40) = 523; Background 2KeV/10KeV = 90/15

Amphibole with Si/Al ~ 7/1. Ca>Na>K. Fe dominant.

Notes: