Ask a Master Gardener - The mineral fraction of soil
Minerals can be either primary or secondary. Primary means they were formed as igneous rocks in the form of molten extrusive lava, which cools quickly, or as intrusive subsurface b…
Minerals can be either primary or secondary. Primary means they were formed as igneous rocks in the form of molten extrusive lava, which cools quickly, or as intrusive subsurface b…