...It is found in the soluble form incombination as silicate of potash, but at times is displaced by oxalic or otheracid and then appears as gritty, sandy particles in the stem... 
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Arenose: a surface that is sandy or gritty...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Sabulose:sandy or gritty...
John. B. Smith 「Explanation of Terms Used in Entomology」
...They had notyet forgotten how to boil food in water-tight basketry, by means ofhot stones, and continued to roast seeds, crickets, and bits of meatin wicker-trays, coated inside with gritty clay...
Frank Hamilton Cushing 「A Study of Pueblo Pottery as Illustrative of Zuñi Culture Growth.」
...If the dust which has fallen on the glass is at all gritty,the glass will suffer by the method of cleaning commonly adopted, inwhich the dust is gathered up by pressure...
Richard A. Proctor 「Half-hours with the Telescope」
...It is well always to suspectthe presence of gritty dust, and adopt this cautious method of cleaning...
Richard A. Proctor 「Half-hours with the Telescope」
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