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Suspicious; open to suspicion. [Obs.] Foote. Smoky quartz (Min.), a variety of quartz crystal of a pale to dark smoky-brown color. See Quartz.

Watery particles congealed into white or transparent crystals or flakes in the air, and falling to the earth, exhibiting a great variety of very beautiful and perfect forms.

A greenish or reddish crystalline substance, NaNH2, obtained by passing ammonia over heated sodium.

0.97. Sodium amalgam, an alloy of sodium and mercury, usually produced as a gray metallic crystalline substance, which is used as a reducing agent, and otherwise. -- Sodium bicarbonate, a white crystalline substance, HNaCO3, with a slight alkaline taste resembling that of sodium carbonate. It is found in many mineral…

alkaloid produced by the action of hydrochloric acid on solanidine, as a tasteless yellow crystalline substance.

An alkaloid produced by the decomposition of solanine, as a white crystalline substance having a harsh bitter taste.

mmon nightshade (Solanum nigrum), and of bittersweet, and from potato sprouts, as a white crystalline substance having an acrid, burning taste; -- called also solonia, and solanina.

ose, found in the ripe berries of the rowan tree, or sorb, and extracted as a sweet white crystalline substance; -- called also mountain-ash sugar.

e, found with sorbin in the ripe berries of the sorb, and extracted as a sirup or a white crystalline substance. -- Sor*bit"ic, a.

Resembling spar, or consisting of spar; abounding with spar; having a confused crystalline structure; spathose. Sparry iron (Min.), siderite. See Siderite (a). -- Sparry limestone (Min.), a coarsely crystalline marble.

An arsenide of platinum occuring in grains and minute isometric crystals of tin-white color. It is found near Sudbury, Ontario Canada, and is the only known compound of platinum occuring in nature.

A mineral found usually in thin, wedge-shaped crystals of a yellow or green to black color. It is a silicate of titanium and calcium; titanite.

Wedge-shaped; as, a sphenoid crystal.

An orbit, as of a star; a socket. [R.] Shak. Armillary sphere, Crystalline sphere, Oblique sphere,. See under Armillary, Crystalline,. -- Doctrine of the sphere, applications of the principles of spherical trigonometry to the properties and relations of the circles of the sphere, and the problems connected with them,…

A minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone.

mineral of a white to yellowish, purplish, or emerald-green color, occuring in prismatic crystals, often of great size. It is a silicate of aluminia and lithia. See Hiddenite.

a lower valence as contrasted with stannic compounds. Stannous chloride (Chem.), a white crystalline substance, SnCl2.(H2O)2, obtained by dissolving tin in hydrochloric acid. It is used as a mordant in dyeing.

A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also granatite, and grenatite.

strument used in determining the position of the planes of light-vibration in sections of crystals.

bling tallow. Stearic acid (Chem.), a monobasic fatty acid, obtained in the form of white crystalline scales, soluble in alcohol and ether. It melts to an oily liquid at 69°C.C18H36O2, CH3.(CH2)16.COOH; sodium stearate, with sodium palmitate, is the main component of ordinary bar soaps (Such as Ivory soap).…