Sepiolite rough stone
Sepiolite is a clay mineral of fibrous magnesiumsilicate.It is a hydrous aluminum-magnesium silicate with chain structure.Usually the colour is white,light gray, pale yellow etc.Sepiolite is opaque and lusterless.Its specific gravity is 2-3.2,the hardness is 2-2.5,and melting point is 1500-1700 °C.It is innoxious, flavourless and high temperature resistance. Sepiolite has low shrinkage rate, good plasticity and insulation, high salt-resistance etc.
A. Chemical Composition of no asbestos sepiolite clay
SiO2 % | Al2O3 % | Fe2O3 % | CaO % | Mn2O % | Gap % | Pulp Rate % |
40-50 | 0.2-2.2 | 0.3-2 | 2.5-20 | 17-25 | 32-48 | 10-15 |
B. Size and Physical Properties of no asbestos sepiolite clay
Item | Size (mm) | Water % | Whiteness |
Sepiolite Fibre | Super Grade, First , Second, Third Grade
| ≤4 | ≤85 |
Sepiolite Powder | 100mesh, 200mesh, 300mesh, 325mesh 400mesh. 600mehs and so on. |
Sepiolite Quality Index(Enterprise Standard) | |||||
Fiber Length | Mineral content(%) | Powder content(%) | Sand Content(%) | Moisture(%) |
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0-30MM | ≥95 | ≤30 | ≤3 | ≤3 |
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0-30MM | ≥95 | ≤30 | ≤3 | ≤3 |
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0-30MM | ≥95 | ≤30 | ≤3 | ≤3 |
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20-40MESH | ≥95 | ≤30 | ≤3 | ≤3 |
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0.5-5MM | ≥95 | ≤30 | ≤3 | ≤3 |
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3-6MM | ≥95 | ≤30 | ≤3 | ≤3 |
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