Glacial Rock Dust Vs Basalt

In the last century our actions have caused a depletion of soil minerals to the point where many of our soils are severely deficient in minerals.
Glacial rock dust vs basalt. Although our azomite and glacial rock dust have been tested and are safe to use this may be a factor in your decision of which rock dust to choose. I ll get into that now. But not all rock dust are equal or optimal for any grow condition. Glacial and basalt rock dust.
Basalt rock dust contains a more limited variety of minerals than the others. So azomite glacial rock dust and basalt and we choose basalt. Basalt is a ground form of volcanic rock. We are very pleased to have found what we believe to be the best basalt volcanic rock dust in the uk.
We think it s the best. Azomite glacial rock dust basalt gypsum and sea 90. Excellent source for calcium magnesium iron manganese silicon cobalt zinc boron and aluminum. Over 30 years ago o ne of the founding fathers of remineralization john hamaker promoted the use of glacial and alluvial rock dusts for remineralization.
Igneous rocks like basalt and granite have the highest mineral content with basalt providing a greater balance of nutrients for optimal plant health and vitality. Let s take a look at their differences and find which will work best for your garden. The difference between volcanic and glacial or other rock dust is the mineral content mainly silica. This is made from sediment created by glacial expansion and contraction.
The major types of rock dust or remineralization products marketed to growers today are. We have been using a fertilizer that contains glacial rock dust at our organic perennial nursery and botanical gardens for many years. Local sourcing and nation wide delivery of the highest value rock dust products. Silica is essential for optimal plant health and vigour but is lacking from commercial soil mixes.
Some sources say basalt rock dust is the optimal kind of rockdust and i ve never heard anyone deny that directly. Rock dust local is the first company in north america specializing in the local sourcing and delivery of the best broad elemental spectrum tectonic rock dusts for remineralization enhanced weathering and the best in biochar formulations nationally. Granite is my go to dust since we live 15 miles from a quarry. Many people consider this the best rock dust for vegetable gardens.
It has less silica than azomite and diatomaceous earth for sure. It may not contain as many trace elements as basalt or azomite.