1.  Home
  2. Whitepapers
  3. Identifying Talc with a High Resolution Field Spectrometer

Identifying Talc with a High Resolution Field Spectrometer

Download Whitepaper

Identifying Talc with a High Resolution Field Spectrometer

Download Whitepaper
Talc is the softest mineral on earth and has many industrial uses in cosmetics, electronics as an insulator, and a filler in paint, rubber, and paper. Talc is part of the trioctahedral phyllosilicates and has a chemical formula of Si4O10M3(OH)2. Talc is found primarily in metamorphic rocks. Talc can be identified by several distinct absorption features. Pure talc has a characteristic doublet around 2320nm. Other major absorption features can be seen at 2380nm and a triple feature near 2077/2127/2172nm. When the talc has iron in it there’s a ferrous iron (Fe2+) feature around 1000nm.

Download Whitepaper Now