Other precious stones found are chalcedony, garnet, jacinth, amethyst, carnelian, agate, rock-crystals, &c. Amber is found at Magura in Zsepes, while fine marble quarries are found in the counties of Esztergom, Komarom, Veszprem and Szepes.
Our chalcedony was probably included by the ancients among the various kinds of jasper and agate, especially the varieties termed "leucachates" and "cerachates."
This consisted of bronze swords and vases, gold jewellery with agate and other gems, bracelets, collars, a seal cylinder and two engraved gold rings, one of which, the largest known, bears a religious scene.
For this purpose Koch ground up tubercle bacilli in an agate mortar and treated them with distilled water until practically no deposit remained.
Marquette, Mich., Presque Ile Point, Mich., Agate Bay, Minn., Grand Marais, Minn., and Ashland, Wis., are on bays which have protective breakwaters across their mouths.
When constructed for purposes of extreme accuracy they will turn with the one-millionth part of the load weighed, though to ensure such a result the knife-edges and their bearings must be extremely hard (either hardened steel or agate) and worked up with great care.
The gems of onyx, carnelian and agate are later and bear various figures, and in some cases Arabic inscriptions.
Several of the varieties are cut into gems and ornaments, balance weights, pivot supports for delicate instruments, agate mortars, &c.; or used for engraving, for instance, cameos and the elaborately carved crystal vases of ancient and medieval times.
The town is celebrated for its manufacture of agate and carnelian ornaments, of reputation principally in China.
See AGATE, BLOODSTONE, CARNELIAN, CHRYSOPRASE, HELIOTROPE, MOCHA STONE, ONYX, SARD and SARDONYX.
When and how the art was introduced is obscure, but there are notices of it as early as the 11th century; and in 1250 Christoforo Briani attempted the imitation of agate and chalcedony.
The end knife-edges also are of steel or agate, and have continuous bearing on flat steel or agate surfaces at the upper part of the suspension links.
Such crystals occur either in cavities in mineral-veins and in granitic rocks, or as a lining in agate geodes.
Well-worn pebbles of amorphous quartz (agate, chalcedony, jasper, &c.) are found in the stratified drift along the western side of the Tertiary region of the state, and from Columbus northward.
At last he found work on a 32mo New Testament, set in agate, double columns, with a middle column of notes in pearl.
Sixteen of these alabaster scarfs hang side by side in Hovey's Balcony, three white and fine as crape shawls, thirteen striated like agate with every shade of brown, Luray Cavern.
His black, agate pupils with saffron- yellow whites moved restlessly near the lower eyelids.