1-3mm Expanded Vermiculite
Product information : vermiculite
Vermiculite, chemical formula M g × (H2O) [Mg3 × (AlSiO3O10) (H2O)], is a magnesium water inclouded aluminum silicate
secondary metamorphic minerals of layered structure. It likes mica in form, and usually come from weathered or hydrothermal
alterated black (gold ) Mica. It will present a deflection shape after heat expansion and water loss, liking a leech pattern in form ,
so it gets the name vermiculite .
Vermiculite features
Raw vermiculite will be expanded to many times when heated at 850-1100 °C, poisonless, odorless , corrosion-resistant, Non-combustible , natural refractory properties , Good thermal insulation , low density , Heat-resistant ,sound-proofing .fire-proofing etc .
Vermiculite chemical :
| Item | SiO2 | MgO | Fe2O3 | Al2O3 | CaO | K2O | H2O | PH |
| Content % | 37-42 | 11-23 | 3.5-18 | 9-17 | 1-2 | 5-8 | 5-11 | 7-11 |
Horticulture Vermiculite :
Vermiculite has been used by plantsmen, propagators, growers and gardeners for decades and our standard Vermiculite and Fine
Grade Vermiculite will allow you to improve your seed sowing germination rates and give your seed and potting compost mixes
the edge.
Supplied in easily manageable re-sealable bags, both grades of vermiculite - a naturally occuring non-toxic mineral - will benefit
seeds and seedlings; the standard is ideal for mixing with seed sowing and potting composts where it absorbs nutrients and
moisture before releasing them near the rootzone, whilst the fine grade is perfectly suited for raising and covering smaller seeds
where damaging soil temperature fluctuations are kept to minimum.
Simply mix the vermiculite with potting compost, use exclusively as a seed sowing medium or cover your seeds after sowing and
just watch the results!
