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ROCK DUSTS REMINERALIZE
Improves soil fertility and plant health.
Good for you and
What Are Rock Dusts?|
Rock dust is also called rock flour, rock powder, stone meal, stone flour, rock
mineral, mineral fertilizer, and mineral fines. Rocks are finely crushed either
mechancially or by nature such as by glaciers. They contain natural trace elements
and minerals. Organic farmers and gardeners love them.
Each type of rock
powder supplies different percentages of nutrients. The major minerals found in
these dusts are potassium (K), phosphorus (P), calcium (C), and magnesium (Mg).
They also contain trace elements such as zinc (Zn), silicon (Si), copper (Cu)
and iron (Fe). Nitrogen (N) is not found in them.
High in Trace Minerals that Your Soil Needs|
Igneous rocks such as granite, basalt, hornfels and rhyolite have high mineral
content. Rock powders do not usually contain high levels of potassium, nitrogen
or phosphorus so they are used with fertilizers that do provide them.
of rock dusts include Azomite, Rock Phosphate, Greensand, Basalt powder, glacial
gravel, granite powder, and gravel dust (see below for more about them). They
are slow release and natural.
Soil Remineralization Helps You|
Rock dusts are all natural, slow release, and good for the environment. Plants
take up more nutrients thereby increasing yield, health, disease resistance, drought/frost
tolerance, and productivity.
Remineralizing your soil creates higher Brix
levels (sweetness) of fruits and vegetables.
Your Soil and Whole Ecosystems|
Earthworms love them. It helps build up soil humus and reduces soil erosion. Soil
holds more moisuture. The soil needs fewer fertilizers to maintain productivity.
Fruit and nut trees love stone meals. Rock dusts can be added to dying
forests to regenerate them. Trees are healthier, and the entire ecosystem is benefited.
"I had always wanted to learn more about the rock dust.
I had learned about it from Dowser Extraordinaire, Phillip Callahan, who
came to speak to our local dowsers chapter (Appalachian Chapter of the American
Society of Dowsers) in the 90's." -Maria, Cliffside, North Carolina
You Need Microbes in Your Soil to Activate Rock Dust|
Compost is alive with microbes. You can start by adding your rock powder to compost.
Add 2 to 20 pounds per cubic yard of compost. Add some soil to your compost too.
The dust speeds up the rate of decomposition. It reduces odors.
adding it to your soil, it is important for there to be an adequate amount of
organic material (it contains microbes).
The finer the powder, the easier
it is for the microbes to use it. It should feel soft like bread flour. Scientifically,
it should fit through a fine 200-mesh screen (sieve).
and Volcanoes Remineralize the Earth|
When the earth is in an Ice Age, glaciers move slowly across the earth and crush
rocks into smaller and smaller pieces. This dust is blown into the air and distributes
across the planet (loess). It also dissloves into water creaing glacial milk (cloudy
Volcanoes also add minerals to the earth when they erupt. These
minerals come from deep within the earth, spreading over the planet as a fine
Adding rock dusts to your soil is acting in accordance with the
ways of nature. Plants love it. Rock dust is used by practitioners of Biodynamics.
of Rocks Used as Stone Meal|
Granite dust has a lot of potassium (K in NPK fertilizer). It has calcium
and magnesium. It is high in trace minerals such as silicon and iron, usually
over 50 of them.
is hydrated sodium calcium aluminosilicate (HSCAS), naturally mined. It contains
70 trace minerals. A very valuable addition of a wide-spectrum of minerals.
Rock Phosphate is a great source of natural phosphorus, calcium and essential
trace elements. It is over 30% phosphate, 48% calcium (calcium oxide). The rest
is trace minerals (about 22%).
About Rocks Used as Stone Meal|
Greensand is a naturally occurring iron-potassium silicate (glauconite).
It is a wonderful soil conditioner because it absorbs and holds moisture. It contains
calcium, potassium, iron, magnesium, and phosphorus plus 30 other trace minerals.
contains potassium, phosphorus, calcium, magnesium and iron.
gravel (glacial rock powder) is from many different rocks that have been ground
down slowly over millennia by glaciers.
This photo is "rock flour" coming
down from a mountain. High in nutrients.
Not High in Trace Minerals|
Most sedimentary rocks (limestone and dolomite) are used to balance soil pH and
provide calcium / magnesium. Limestone is mostly calcium carbonate and is good
for most acid soils in moderation.
However, it should not be added to
forests because in the long run it destroys the humus-building complex.
is low in most trace minerals and micronutrients.
The book The Enlivened
Rock Powders by Harvey Lisle shows how to use rockdust as a fertilizer, compost
activator, and plant growth stimulator. He explains the spiritual and cosmic aspects
of rocks. Lisle is an expert in biodynamic techniques and dowsing.
from Stones" by Julius Hensel|
Dr. Julius Hensel wrote his pioneering book Bread from Stones in 1894.
He was a German Agricultural Chemist who discovered that adding finely ground
rock dust (stone dust) to soil gave plants resistance to bacterial, fungal and
He was opposed to the use of synthetic (non-organic) chemicals
in agriculture. Fifty years later organic farmers and gardeners joined him in
He also believed, based on farm tests, that stone meal
could replace not only agriculture chemical fertilizers but animal supplements
Read the pdf Bread
from Stones, a 111 page book: A New and Rational System
of Land Fertilization and Physical Regeneration.
Hensel recommended the non-caustic, gentle minerals of pulverized rocks, especially
granite. He united agricultural chemistry with biochemistry and nutrition creating
a theory that the chemistry of life is basically determined by the chemistry of
the soil, and that synthetic fertilizers unbalance and destroy proper soil chemistry.
Powdered rocks restore normal soil mineral balance, producing food that is high
in nutrition and flavor. His book is a classic of sustainable agriculture, a man
way ahead of his time.
Survival of Civilization" by John D. Hamaker|
Written in 1982 Mr. Hamaker discusses our environmental and climatic disarray
and decline. His book covers large cycles of geological time, explaining how the
quality and quanity of minerals in our soil greatly affects our health and the
health of the planet.
Mr. Hamaker was a mechanical engineer and agronomist
(expert in soil management and field crops) who studied soil science and paleoclimatology
(climates of past ages). Based on geological cycles he determined that rock dusts
(rock flours) were needed to bring back minerals currently missing in our soil.
This improves the nutrition of our food and thus our health. The same effect occurs
when remineralizing forests or pastures. He believed it was economically viable
and necessary to add rock minerals to poor soils on a massive scale.
of the Soil" by Peter Tompkins and Christopher Bird|
"The Survival of Civilization is regarded by a growing movement worldwide
as a blueprint for the survival of the Earth, restoring ecological balance and,
perhaps, even recreating Eden. The health and well-being of all living things
ultimately depends on a highly mineralized, alive and vibrant soil. Rock dust
adds up to a hundred elements and trace minerals and can greatly increase yield
and quality of food, making organic agriculture truly viable. Undertaking the
task of remineralization is urgent to restore our agricultural soils, to save
the dying forests in the temperate latitudes, and to stabilize our climate."
Tompkins, co-author of The Secret Life of Plants and Secrets of the
graph of the cycles of rocks.|
down-to-earth farming in zones 5/6/7,
see our Western
North Carolina Farm and Garden Calendar.