How to use Selenite in a sentence

selenite
  • It consists mainly of grey dreary flats covered with selenite; and a little below the surface, gypsum.

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  • Meyer (Ber., 1902, 35, p. 1 59 1) by the electrolysis of silver selenite in the presence of potassium cyanide obtained the value 79.22.

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  • Such plates are generally made of mica or selenite, and the normal to the plane of polarization of the most retarded stream is called "the axis of the plate."

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  • In fact, the lateral systems are obtained when a plate of selenite is substituted for the quartz.

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  • Below the analyser G a plate H of selenite or mica may be put in the course of the rays.

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  • In the following year he discovered the change, produced by change of temperature, in the direction of the optic axes of selenite.

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  • Manufacturers are expected to replace organic selenium with sodium selenite.

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  • Calcium sulphate, CaSO 4, constitutes the minerals anhydrite (q.v.), and, in the hydrated form, selenite, gypsum (q.v.), alabaster (q.v.), and also the adhesive plaster of Paris (see Cement).

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  • Pete arranged some photographs of the passage profile and the selenite crystals on the mud floor.

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  • Viewing is greatly improved by the " blue " selenite slip.

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  • In this part of its course the rocky sides of the valley, which sometimes closely approach the river, are composed of marls and gypsum, with occasional selenite, overlaid with sandstone, with a topping of breccia or conglomerate, and rise at places to a height of 200 ft.

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  • The mineral was probably included with selenite under Pliny's term lapis specularis.

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  • Thus the sulphate constitutes the minerals anhydrite, alabaster, gypsum, and selenite; the carbonate occurs dissolved in most natural waters and as the minerals chalk, marble, calcite, aragonite; also in the double carbonates such as dolomite, bromlite, barytocalcite; the fluoride as fluorspar; the fluophosphate constitutes the mineral apatite; while all the more important mineral silicates contain a proportion of this element.

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  • Children can be given supplements containing 1.0 mg sodium selenite.

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