hydromica


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hydromica

[¦hī·drō′mī·kə]
(geology)
Any of several varieties of muscovite, especially illite, which are less elastic than mica, have a pearly luster, and sometimes contain less potash and more water than muscovite. Also known as hydrous mica.
References in periodicals archive ?
32 [Angstrom], whose values do not change either after saturation with ethylene glycol or after calcination, indicate the presence of rock hydromica.
In this group of samples the highest conversion of methylbutynol was observed for palygorskite, and the lowest for hydromica and H-ZSM-5.
Comparison of the catalytic ability of both groups of samples from Russian and Jordanian deposits gives a general sequence for values of MBOH conversion: palygorskite > kaolinite-R > zeolite-J > bentonite-J > hydromica > red kaolinite > H-ZSM-5 > white kaolinite > diatomite.
However, presence of montmorillonite and hydromica along with kaolinite in natural sample explains higher yield of acidic products.
In the case of hydromica the yield of acid and basic products was practically identical.
Among the whole studied alumosilicates the sample of kaolinite from Russian deposit, containing also 30 % of hydromica and 10 % of montmorillonite, provided relatively high conversion of MBOH, which, at the same time, did not exceed the one provided by palygorskite.
1969, On the mechanism of a postsedimentary transformation of montmorillonite into hydromica.
1969, On the mechanism of a postsedimentary transformation of montmorillonite into hydromica, 523-531 in: Proceedings of the International Clay Conference 1969, Tokyo, Japan (L.
Following minerals from Ukrainian deposits were used to find the effective sorbents: mordenite, clinoptilolite, montmorillonite, saponite, glauconite, hydromica and palygorskite.
Palygorskite and hydromica also clean sortovka from aldehydes and ethers.
Interesting results were obtained when the initial "sortovka" was cleaned with different adsorbents, namely by palygorskite, hydromica and active carbon BFC (birch fissile coal) and CFC (core fissile coal).
As seen from Table 2 the aldehyde content increases a little bit during several first minutes of contact between palygorskite and hydromica with "sortovka".