anthophyllite
noun
                                                                                                                            
                                                            an·tho·phyl·lite
                    
                                                                                                              
                                                                                                                                  ˌan(t)-thə-ˈfi-ˌlīt  (ˌ)an-ˈthä-fə-
                                                                                                                                  (ˌ)an-ˈthä-fə-  
                                                      
                                                          
            
                                
              
          
                                                      : an orthorhombic mineral of the amphibole group that is essentially a silicate of magnesium and iron and is usually lamellar or fibrous and when fibrous is one of the less common forms of asbestos                                      
                
                    
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  Merriam-Webster unabridged




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