Answers for "matreial icons"

materialize icons

<link href="https://fonts.googleapis.com/icon?family=Material+Icons"
      rel="stylesheet">

google material icons

<i class="material-icons">face</i>

Mat icons

<button mat-button *ngIf="item.value.view" matSuffix mat-icon-button aria-label="Clear" (click)="clear(i, j)">
     <mat-icon>close</mat-icon>
   </button>