Pour Olde Thompson Himalayan Salt into a saucer or shallow bowl.
Rub the rim of each margarita glass with one lime wedge to moisten the rim. Dip glass into salt to create a salt rim. Repeat for all four glasses.
Pour juice of the remaining lime, along with pineapple juice, orange juice, triple sec and tequila together into a cocktail shaker. Add ice to shaker, place top on shaker and shake until very cold, about 30 seconds.
Fill each prepared margarita glass with fresh ice. Strain equal amounts of shaken margarita into each glass.
Garnish glasses with remaining lime wedges and serve.