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Volcanic Rock Dust (Basalt) 5KG

£20.00


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We are very pleased to have found what we believe to be the best Basalt (Volcanic Rock Dust) in the UK.

The difference between Volcanic and Glacial or other Rock Dust is the mineral content, mainly Silica. Silica is essential for optimal plant health and vigour, but is lacking from commercial soil mixes. It isn’t tested for on most soil tests and is often overlooked but having a good Silica content in your soil will amaze you with the results.

Volcanic basalt contains concentrated amounts of trace elements and minerals that have been leached from our surface soils from over-use due to long term agricultural practices and exposure to the elements. There are few ways in which soil can be remineralised that are naturally organic, providing any benefit to soil quality.

Our product comes from Mothers Earth Minerals in Cornwall and has been un-earthed in the excavation of stone for road surfacing, having been compressed in sedimentary layers over many thousands of years. It is a by-product of this industry, not used in any substantial amount and is a limited commodity so is more expensive than what we get from Scotland but the 58% Silica content makes it worth getting whilst you can:

58.36% Silica 0.72% Titanium
0.13% Manganese 4.08% Magnesia
1.96% Potassium 0.26% Phosphorus
15.93% Alumina 6.76% Iron Oxide
4.62% Soda 3.67% Calcium Carbonate

As the basalt is rich in natural silica, it can cause irritation to the lungs and skin. it is essential that you use a proper mask and gloves when applying the basalt to your soil.

We currently use this in our Soilforlife Pro

Weight 1 kg
Dimensions 30 x 30 x 30 cm

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