The crystalline varieties include: amethyst, violet; citrine and false topaz, pale yellow; rock crystal, transparent and colorless or nearly so; rose quartz, rosecolored; smoky quartz, smoky brown. The chief crypto-crystalline varieties are: agate, a chalcedony in layers or clouded with different colors, including the onyx and sardonyx; carnelian and sard, red or flesh- colored chalcedony; chalcedony, nearly white, and waxy in luster; chrysoprase, an apple-green chalcedony; flint, hornstone, basanite, or touchstone, brown to black in color and compact in texture; heliotrope, green dotted with red; jasper, opaque, red yellow, or brown, colored by iron or ferruginous clay; prase, translucent and dull leek-green. Quartz is an essential constituent of granite, and abounds in rocks of all ages. It forms the rocks quartzite (quartz rock) and sandstone, and makes most of the sand of the seashore.

(Quartz*if"er*ous) a. [Quartz + -ferous.] (Min.) Consisting chiefly of quartz; containing quartz.

(Quartz"ite) n. [Cf. F. quartzite.] (Min.) Massive quartz occurring as a rock; a metamorphosed sandstone; — called also quartz rock.

(Quartz"oid) n. [Quartz + - oid.] (Crystallog.) A form of crystal common with quartz, consisting of two six-sided pyramids, base to base.

(Quartz"ose`) a. [Cf. F. quartzeux, G. quarzig.] (Min.) Containing, or resembling, quartz; partaking of the nature or qualities of quartz.

(quartz"ous) a. (Min.) Quarzose.

(Quartz"y) a. (Min.) Quartzose.

(Quas) n. A kind of beer. Same as Quass.

(Quas"chi Quas"je) , n. (Zoöl.) The brown coati. See Coati.

(Quash) n. Same as Squash.

(Quash), v. t. [imp. & p. p. Quashed ; p. pr. & vb. n. Quashing.] [OF. quasser, F. casser, fr. L. cassare to annihilate, annul, fr. cassus empty, vain, of uncertain origin. The word has been confused with L. quassare to shake, F. casser to break, which is probably of different origin. Cf. Cashier, v. t.] (Law) To abate, annul, overthrow, or make void; as, to quash an indictment. Blackstone.

(Quash), v. t. [OF. quasser, F. casser, fr. L. quassare to shake, shatter, shiver, v. intens. fr. quatere, quassum, to shake, shatter. Cf. Concussion, Discuss, Rescue, and also Quash to annul.]

1. To beat down, or beat in pieces; to dash forcibly; to crush.

The whales
Against sharp rocks, like reeling vessels, quashed,
Though huge as mountains, are in pieces dashed.

2. To crush; to subdue; to suppress or extinguish summarily and completely; as, to quash a rebellion.

Contrition is apt to quash or allay all worldly grief.

(Quash), v. i. To be shaken, or dashed about, with noise.

(Quash"ee) n. A negro of the West Indies.

(Qua"si) [L.] As if; as though; as it were; in a manner sense or degree; having some resemblance to; qualified; — used as an adjective, or a prefix with a noun or an adjective; as, a quasi contract, an implied contract, an obligation which has arisen from some act, as if from a contract; a quasi corporation,

  By PanEris using Melati.

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