Quantification of Tremolite in Friable Material Coming from Calabrian Ophiolitic Deposits by Infrared Spectroscopy

Table 1

Infrared spectra (wavenumbers, cm⁻¹) of tremolite used as standard sample.

Absorption frequency (cm^−1) of tremolite	Assignment
(San Mango, Italy)	[12, 29]
3674 w; 3660 sh	OH stretching vibration
1105 vs; 1064 vs; 1016 sh; 998 vvs; 947 vvs; 924 vs	Si-O stretching; Si-O-Si and O-Si-O stretching
756 s	Si-O and Si-O-Si stretching
545 sh; 526 sh; 508 s; 458 vvs; 447 vvs	Metal-O stretching and Si-O bending vibrations

Note: relative intensities are denoted by the following:
s = strong, m = medium, w = weak, v = very, and sh = shoulder.