在線聊天
Competitive price Agriculture grade expanded vermiculite from China
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Vermiculite is an hysteromorphous and metamorphous minera from water alumimum silicate with the layered structure.The shape of raw material looks like mica ,it comes from the black mica through air-slake or hydrothermal alteration.when it is heated to lose water and expanded then the shape is flexural and looks like the leech ,so it named vermiculite .Based on the stage ,vermiculite can be devided into raw vermiculite and expanded vermiculite .Based on the color ,vermiculite can be devided into golden vermicultie and silver vermiculite .
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Expanded vermiculite:
Garden's vermiculite has the following features:
- Inorganic, inert and sterile.
- Non abrasive.
- Ultra light weight.
- Free from disease, weeds and insects.
- Slightly alkaline.
- High cation-exchange.
- Excellent aeration characteristics.
- High water holding capacity
- Insulating.
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