... .5, 1-2, 1-3, 2-4, 2-5mm; 20-40, 40-60, 60-120, 50-150mesh Color: Golden, Silver Vermiculite Expanded ... .5, 1-2, 1-3, 2-4, 2-5mm; 20-40, 40-60, 60-120, 50-150meshGolden Vermiculite Flakes: 0.3-1mm ... Carrier4. Hydroponics 5. Animal Feedstuffs Exfoliated Golden/Silver Vermiculite 20-40, 40-60, 60-120, 50-150mesh