Volcanic rock powder (up to 2 mm) with 48% silicon dioxide (SiO2) for soil improvement, mineral enrichment, and leaf drying
SNOEK's rock powder is made from pure volcanic diabase rock and finely ground. The powder combines fine particles for direct interaction with soil microorganisms with a coarse fraction (up to 2 mm) as a long-term mineral depot. It enriches the soil with silicic acid, calcium, magnesium, and trace elements.
Your benefits at a glance:
High silicic acid content (48% SiO2): Provides plants with plant-available silicon. This is deposited in the outer cell walls (epidermis) and increases the mechanical strength of the tissue.
Better soil structure: Increases nutrient storage, improves aeration in compact soils, and boosts water retention in sandy soils.
Physical leaf care: The fine dust layer speeds up the drying of water droplets on leaf surfaces and makes it harder for free moisture to stick.
Odor control in composting: When sprinkled in layers, the fine rock powder binds organic odor compounds in the compost, supports bacterial activity, and promotes the formation of stable clay-humus complexes.
Tested purity: The nickel content is safely below the legal limit of 120 mg/kg, at 92 mg/kg.
Technical data and mineral composition:
Raw material: 100% pure diabase (stone meal up to 2 mm grain size)
Silicon dioxide (SiO2): 48.0%
Aluminum oxide (Al2O3): 13.6%
Iron oxide (Fe2O3): 13.6%
Natural trace elements: Rich in magnesium, calcium, boron, and zinc.
Application and Dosage: The application is possible all year round, preferably in spring and autumn:
Soil application (vegetable and fruit cultivation): Apply 15–25 kg per 100 m² evenly and lightly work it in.
Lawn and pasture areas: Sprinkle 15–20 kg per 100 m² evenly.
New planting: Mix 2–3 kg directly into the excavated soil of the planting hole.
Mechanical foliar application: Dust about 4–6 kg per 100 m² thinly over the moist leaves in calm weather.
Composting: Sprinkle a thin layer evenly per 15 cm of material.
Storage and Safety Instructions:
Due to its slightly alkaline buffering effect, do not use for acid-loving bog plants (e.g., rhododendrons, azaleas, blueberries).
Store in a dry, closed container. Exposure to water may cause surface solidification.
Keep out of reach of children and pets.
Not suitable for human consumption.
When applying in dust form, wearing a dust mask is recommended.
