Bulk Density (lb/cu.ft.) Loose Packed Gelatine, granulated 32 Gilsonite 37 Glass, batch 80 100 Glue, ground 40 Glue, pearl 40 Glue, veg. powdered 40 Gluten, meal 40 Granite, fine 80 90 Grape pomace 15 20 Graphite flake 40 Graphite flour 28 Graphite ore 65 75 Guano, dry 70 Gypsum, calcined 55 60 Gypsum, calcined, powdered 60 80 Gypsum, raw - 1 ...