Now you can make your needle sharpener Emery Pincushions with this loose Emery Sand ! It's also known Turkish Emery Sand, Emery Powder, Emery Mineral and Grain. 3 cups more than 3 pounds! You can make approximately 12 pincushions (2"x3.5") with this amount... You've probably seen Tomato with Strawberry Pincushion in any store. Do you know this tiny cute Strawberry Pincushion has Emery Grain inside? Emery is a very hard rock and mixed with other species of mineral and it becomes extremely abrasive. When you stick your needle into an Emery Pincushion, it cleans and sharpens your needle, making your work quicker and easier.