Vermiculite for Sale | Bulk Horticultural and Mineral Vermiculite from China

Vermiculite is a naturally occurring, expanded mineral that has a unique, accordion-like structure. When heated, vermiculite expands significantly, creating a lightweight and absorbent material that is non-toxic and fire-resistant. It is commonly used in a variety of applications, including insulation, gardening, construction, and packaging.

In gardening, vermiculite is often mixed with soil to improve water retention, aeration, and root growth, making it ideal for use in seed starting and potting mixes. In construction, it is used as an insulating material for walls, ceilings, and attics, helping to enhance energy efficiency and fireproofing. Vermiculite is also used in the production of dry-formed concrete and fireproof coatings.

Due to its lightweight nature, thermal resistance, and environmental benefits, vermiculite is a versatile material that adds value to both industrial and household applications.

Horticultural Grade Exfoliated Expanded Vermiculite For Gardening And Growing Seedlings

The density of vermiculite is 2.4-2.7g/cm³ it begins expend when it is heated over 200℃, becoming the worm-like shape and it can be 15-25times bigger than the original volume,maximum 30 time. When it is rapidly heated to 800℃. This forms the material with low density(100-300㎏/m³), excellent insulation property and good hydroscopicity and ion exchange capacity. Because the vermiculite has a fine air barrier, it has excellent heat preservation performance.
Raw Gold Crude Vermiculite Or Silver Vermiculite

Vermiculite is a kind of natural, non-toxic, inorganic silicate mineral, whose raw ore looks like mica. Vermiculite is formed by the hydrothermal alteration or weathering of minerals, usually biotite and phlogopite. When heated,it expands like leech. Vermiculite are divided into raw vermiculite and expanded vermiculite by stages, and according to the color, it can be divided into golden vermiculite, silvery white vermiculite, milky white vermiculite.