AMOSITE 

Chemical Formula = (Fe2+Mg)7[Si8O22](OH)2                                    

Amosite (Brown Asbestos): Straight, brittle fibers that are light grey to pale brown (the most commonly used in thermal system insulation).

Amosite exposed to high temperatures for a long period of time is referred to as heated amosite and may differ in colour and morphology from normal amosite. The colour of heated amosite typically ranges from a pale yellow to a reddish-brown colour in plane light.