Silver Sand

Is something we use a lot
Lime-free horticultural grade sand it primarily consists of quartz particles which are not coated in iron oxides, making it perfect for adding to growing media. and comes from Cornwall unlike other grits and sands, Silver Sand is not usually used for mortar or concrete when paving or laying slabs and its particle size is not all one size like builders sand
Thats the difference between sharp sand (which is crushed rock; In fact, it is fine grade grit) and natural sand, such as beach sand, which has rounded grains. Beach sand should generally be avoided for horticultural purposes.

Silver Sand is a favourite amongst  all gardeners as it provides countless options for use in and around the garden..
Washed and dried, Silver Sand is available as  a horticultural grade quality which is perfect for seed sowing, setting cuttings and for use in compost mixes.
silver sand improves aeration [always a point of argument but true ] and  it also holds a small amount of water around the particles  that helps cool the soil in pots in greenhouses in strong summer sun .It is not simply a matter of improving drainage, but of improving the actual structure of the soil, (for example, so that it is better aerated, or to allow roots to penetrate more easily.) The surfaces of the grains also help with certain kinds of ion exchange which enables plant roots to take in some nutrients more easily and it seems to help prevent some soil  pests and stops surface mould quickly .

 I also use it as a top dressing for lawns mixed with peat and loam for a perfect lawn top dressing.