TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The composition further comprises: a dust suppressing amount of an absorbent silicate mineral having parallel sheets of silicate tetrahedra; and a dispersant comprising a member comprising tetra sodium pyrophosphate, sodium polyacrylate, sodium hexametaphosphate, sodium silicate and/or sodium bicarbonate. The coating composition comprises 0.01-25 wt.% (or 0.01-7 wt.%), preferably 2-4 wt.% of the substrate on a dry basis. Preferred Method: The contacting step is performed by spraying or tumbling. Preferred Components: The non-absorbent silicate mineral: has a Nickel-Strunz classification of 09.D; comprises a member comprising single chain inosilicates and/or double chain inosilicates. The single chain inosilicate comprises a member comprising enstatite, ferrosilite, pigeonite, diopside, hedenbergite, augite, jadeite, acmite, spodumene, wollastonite, rhodonite and/or pectolite. The double chain inosilicate comprises a member comprising anthophyllite, cummingtonite, grunerite, tremolite, actinolite, hornblende, glaucophane, riebeckite and/or arfvedsonite. The non-absorbent silicate mineral is wollastonite. The absorbent silicate mineral: has a Nickel-Strunz classification of 09.E; and comprises a member comprising montmorillonite, kaolinite, bentonite (all preferred), antigorite, chrysotile, lizardite, halloysite, illite, vermiculite, talc, palygorskite, attapulgite, sepiolite, pyrophyllite, biotite, muscovite, phlogopite, lepidolite, margarite, glauconite and/or chlorite. The silicate mineral components are present in any proportion or combination at a workable solids level of 2-70 wt.% of the slurry. The substrate is a member comprising single nutrient fertilizers, multiple nutrient fertilizers (both preferred), soil amendments, seed, iron ore pellets, a dirt road, a gravel road, mine tailings, dried tailings pond and mineral stock piles. The dust producing substrate is seed. EXAMPLE - Typical composition comprised of: 24 wt.% of wollastonite; 56 wt.% of montmorillonite; 0.8 wt.% of polyacrylate; and 719.2 wt.% of water.