Antigorite
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Antigorite is a lamellated, monoclinic mineral in the phyllosilicate serpentine subgroup with the ideal chemical formula of 3Si2O54. It is the high-pressure polymorph of serpentine and is commonly fou
Antigorite crystals in serpentinite from Poland
Polished antigorite
Simplified crystal structure of antigorite looking down the b axis. Blue triangles indicate SiO4 tetrahedra, green layers indicate Mg octahedra. Red line indicates polarity reversal. In this case, m = 17.
Chrysotile
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Chrysotile or white asbestos is the most commonly encountered form of asbestos, accounting for approximately 95% of the asbestos in the United States and a similar proportion in other countries. It is
Antigorite
…from the Maryland-Pennsylvania region is declining due to construction and depletion of deposits. The magnesian serpentines (antigorite, lizardite, chrysotile) are trioctahedral hydrous phyllosilicates. Their structure is based on 1:1 octahedral-tetrahedral layer structures. Antigorite is monoclinic in the…
Chrysotile 1
SEM photo of chrysotile
Chrysotile asbestos