1. Tsarin Sinadarai: Mg8(H2O)4[Si6O16]2(OH)4•8H2O

2. Ma'adinin yumbu mai fiber magnesium silicate
3. Silicate mai ruwa-ruwa mai aluminum-magnesium mai tsarin sarka
4. Ba shi da haske, ba shi da lahani, ba shi da ɗanɗano, babu gurɓatawa
5. Ƙananan raguwar raguwa, kyakkyawan filastik da rufi, ƙarfin shawa mai ƙarfi
6. Juriyar zafin jiki, juriyar gishiri, juriyar acid

Tsarin sinadarai: (Si12)(Mg8)O30(OH)4(OH2)4·8H2O
Ma'adanai na Clay na Hydrous Magnesium Silicate

Babban kayan da ake amfani da shi wajen yin laka ta teku shine foda na sepiolite, wanda ma'adinin yumbu ne mai ruwa-ruwa wanda yake da sinadarin magnesium silicate mai tsafta, ba shi da guba, ba shi da wari, kuma ba ya haifar da rediyo. Yana da mafi girman yanki na musamman a cikin ma'adanai marasa ƙarfe (matsakaicin har zuwa 900m2/g) kuma tsarin ramuka na musamman, wanda aka san shi a matsayin ma'adinin yumbu mai ƙarfi.

Wasu daga cikin halayen saman sepiolite (kamar raunin acidity na saman, maye gurbin ions na magnesium da wasu ions, da sauransu) sun sa shi da amfani a matsayin mai kara kuzari ga wasu halayen. Saboda haka, sepiolite ba wai kawai kyakkyawan mai sha ba ne amma kuma mai kara kuzari ne kuma mai kara kuzari.