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Vermiculite is a naturally occurring mineral that expands when heated, resulting in a lightweight, porous material. It is composed of hydrated magnesium iron aluminum silicate and is known for its excellent moisture retention and aeration properties. Typically used in horticulture and agriculture, vermiculite improves soil structure, enhances nutrient retention, and promotes healthy root development in plants.
| Material | Hydrated magnesium iron aluminum silicate |
| Expansion ratio | 6:1 to 15:1 |
| Particle size | 0.2 mm to 6 mm |
| pH level | 7.0 to 8.0 |
| Moisture retention | Up to 4 times its weight in water |
When selecting vermiculite, consider the expansion ratio and particle size that best suits your application. Higher expansion ratios may be preferred for lightweight mixes, while specific particle sizes can enhance aeration or moisture retention. It's also important to specify the desired pH level and ensure the product is free from contaminants. Always request information on the source and any relevant certifications to ensure quality.
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Vermiculite is used to improve soil structure, retain moisture, and enhance nutrient availability in plant growth.
Yes, vermiculite is non-toxic and safe for use in gardening and horticulture.
Vermiculite can absorb and hold water up to four times its weight, providing consistent moisture to plants.
Yes, vermiculite is often mixed with perlite, peat moss, or compost to create optimal growing media.
Vermiculite retains more moisture and nutrients, while perlite provides better drainage and aeration.
Yes, vermiculite is a natural mineral and is considered an environmentally friendly soil conditioner.