CALAMINE
, a See also:mineral See also:species consisting of See also:zinc carbonate, ZnCO3, and forming an important ore of zinc
.
It is See also:rhombohedral in See also:crystallization and isomorphous with See also:calcite and See also:chalybite
.
Distinct crystals are somewhat rare; they have the See also:form of the See also:primitive rhombohedron ('=72° 20'), the faces of which are generally curved and rough
.
Botryoidal and stalactitic masses are more See also:common, or again the mineral may be compact and granular or loose and earthy
.
As in the other rhombohedral See also:carbonates, the crystals possess perfect cleavages parallel to the faces of the rhombohedron
.
The hardness is 5; specific gravity, 4.4
.
The See also:colour of the pure mineral is See also:- WHITE
- WHITE, ANDREW DICKSON (1832– )
- WHITE, GILBERT (1720–1793)
- WHITE, HENRY KIRKE (1785-1806)
- WHITE, HUGH LAWSON (1773-1840)
- WHITE, JOSEPH BLANCO (1775-1841)
- WHITE, RICHARD GRANT (1822-1885)
- WHITE, ROBERT (1645-1704)
- WHITE, SIR GEORGE STUART (1835– )
- WHITE, SIR THOMAS (1492-1567)
- WHITE, SIR WILLIAM ARTHUR (1824--1891)
- WHITE, SIR WILLIAM HENRY (1845– )
- WHITE, THOMAS (1628-1698)
- WHITE, THOMAS (c. 1550-1624)
white; more often it is brownish, sometimes See also:green or See also:blue: a See also:bright-yellow variety containing See also:cadmium has been found in See also:Arkansas, and is known locally as " See also:turkey-See also:fat ore." The pure material contains 52% of zinc, but this is often partly replaced isomorphously by small amounts of See also:iron and See also:manganese, traces of See also:calcium and See also:magnesium, and sometimes by See also:copper or cadmium
.
Calamine is found in beds and See also:veins in See also:limestone rocks, and is often associated with See also:galena and See also:blende
.
It is a product of alteration of blende, having been formed from this by the See also:action of carbonated See also:waters; or in many cases the zinc sulphide may have been first oxidized to sulphate, which in See also:solution acted on the surrounding limestone, producing zinc carbonate
.
The latter mode of origin is suggested by the frequent occurrence of calamine pseudomorphous after calcite, that is, having the form of calcite crystals
.
Deposits of calamine have been extensively See also:mined in the limestones of the Mendip Hills, in See also:Derbyshire, and at See also:Alston See also:Moor in See also:Cumberland
.
It also occurs in large amount in the See also:province of See also:Santander in See also:Spain, in See also:Missouri, and at several other places where zinc ores are mined
.
The best crystals of the mineral were found many years ago at Chessy near See also:Lyons; these are rhombohedra of a See also:fine See also:apple-green colour
.
A translucent botryoidal calamine banded with blue and green is found at Laurion in See also:Greece, and has sometimes been cut and polished for small ornaments such as brooches
.
The name calamine (See also:German, Galmei), from lapis calaminaris, a Latin corruption of cadmia (Kabala), the old name for zinc ores in See also:general (G
.
See also:Agricola in 1546 derived it from the Latin calamus, a See also:reed), was See also:early used indiscriminately for the carbonate and the hydrous silicate of zinc, and even now both species are included by miners under tie same See also:term
.
The two minerals often closely resemble each other in See also:appearance, and can usually only be distinguished by chemical See also:analysis; they were first so distinguished by See also:- JAMES
- JAMES (Gr. 'IlrKw,l3or, the Heb. Ya`akob or Jacob)
- JAMES (JAMES FRANCIS EDWARD STUART) (1688-1766)
- JAMES, 2ND EARL OF DOUGLAS AND MAR(c. 1358–1388)
- JAMES, DAVID (1839-1893)
- JAMES, EPISTLE OF
- JAMES, GEORGE PAYNE RAINSFOP
- JAMES, HENRY (1843— )
- JAMES, JOHN ANGELL (1785-1859)
- JAMES, THOMAS (c. 1573–1629)
- JAMES, WILLIAM (1842–1910)
- JAMES, WILLIAM (d. 1827)
James See also:Smithson in 1803
.
F
.
S
.
See also:Beudant in 1832 restricted the name calamine to the hydrous silicate and proposed the name " smithsonite " for the carbonate, and these meanings of the terms are now adopted by See also:Dana and many other mineralogists
.
Unfortunately, however, in See also:England (following See also:Brooke and See also:Miller, 1852) these designations have been reversed, calamine being used for the carbonate and smithsonite for the silicate
.
This unfortunate confusion is somewhat lessened by the use of the terms zinc-spar and See also:hemimorphite (q.v.) for the carbonate and silicate respectively
.
(L
.
J
.
S.)
966
fine high See also:altar of the 17th See also:century; its lofty See also:tower serves as a landmark for sailors
.
A gateway flanked by turrets (14th century) is a relic of the H6tel de See also:Guise, built as a gild See also:- HALL
- HALL (generally known as SCHWABISCH-HALL, tc distinguish it from the small town of Hall in Tirol and Bad-Hall, a health resort in Upper Austria)
- HALL (O.E. heall, a common Teutonic word, cf. Ger. Halle)
- HALL, BASIL (1788-1844)
- HALL, CARL CHRISTIAN (1812–1888)
- HALL, CHARLES FRANCIS (1821-1871)
- HALL, CHRISTOPHER NEWMAN (1816—19oz)
- HALL, EDWARD (c. 1498-1547)
- HALL, FITZEDWARD (1825-1901)
- HALL, ISAAC HOLLISTER (1837-1896)
- HALL, JAMES (1793–1868)
- HALL, JAMES (1811–1898)
- HALL, JOSEPH (1574-1656)
- HALL, MARSHALL (1790-1857)
- HALL, ROBERT (1764-1831)
- HALL, SAMUEL CARTER (5800-5889)
- HALL, SIR JAMES (1761-1832)
- HALL, WILLIAM EDWARD (1835-1894)
hall for the See also:English woolstaplers, and given to the See also:duke of Guise as a See also:reward for the recapture of See also:Calais
.
The See also:modern See also:town-hall and a See also:- CHURCH
- CHURCH (according to most authorities derived from the Gr. Kvpcaxov [&wµa], " the Lord's [house]," and common to many Teutonic, Slavonic and other languages under various forms—Scottish kirk, Ger. Kirche, Swed. kirka, Dan. kirke, Russ. tserkov, Buig. cerk
- CHURCH, FREDERICK EDWIN (1826-1900)
- CHURCH, GEORGE EARL (1835–1910)
- CHURCH, RICHARD WILLIAM (1815–189o)
- CHURCH, SIR RICHARD (1784–1873)
church of the 19th century are the See also:chief buildings of the See also:quarter of St See also:Pierre
.
Calais has a See also:board of See also:trade-arbitrators, a tribunal and a chamber of See also:commerce, a commercial and See also:industrial school, and a communal See also:college
.
The See also:harbour is entered from the roads by way of a channel leading to the See also:outer harbour which communicates with a floating See also:basin 22 acres in extent, on the See also:east, and with the older and less commodious portion of the harbour to the See also:north and See also:west of the old town
.
The harbour is connected by canals with the See also:river Aa and the navigable waterways of the See also:department
.
Calais is the See also:principal See also:port for the See also:continental passenger See also:traffic with England carried on by the See also:South-Eastern & See also:Chatham and the See also:Northern of See also:France See also:railways
.
The See also:average number of passengers between See also:Dover and Calais for the years 1902–1906 inclusive was 315,012
.
Trade is chiefly with the See also:United See also:Kingdom
.
The principal exports are wines, especially See also:champagne, See also:spirits, See also:hay, See also:straw, See also:wool, potatoes, See also:woven goods, See also:fruit, See also:glass-See also:ware, See also:lace and See also:- METAL
- METAL (through Fr. from Lat. metallum, mine, quarry, adapted from Gr. µATaXAov, in the same sense, probably connected with ,ueraAAdv, to search after, explore, µeTa, after, aAAos, other)
metal-ware
.
Imports include See also:cotton and See also:silk goods, See also:coal, iron and See also:steel, See also:petroleum, See also:timber, raw wool, cotton See also:yarn and See also:cork
.
During the five years 1901–1905 the average See also:annual value of exports was £8,388,000 (£6,363,000 in the years 1896-1900), of imports £4,145,000 (£3,759,000 in 1896–1900)
.
In 1905, exclusive of passenger and See also:mail boats, there entered the port 848 vessels of 312,477 tons and cleared 857 of 305,284 tons, these being engaged in the general carrying trade of the port
.
The See also:main See also:industry of Calais is the manufacture of See also:tulle and lace, for which it is the chief centre in France
.
See also:Brewing, saw-milling, See also:boat-See also:building, and the manufacture of biscuits, See also:soap and submarine cables are also carried on
.
Deep-See also:sea and See also:coast fishing for See also:cod, See also:herring and See also:mackerel employ over r000 of the inhabitants
.
Calais was a See also:petty fishing-See also:village, with a natural harbour at the mouth of a stream, till the end of the loth century
.
It was first improved by See also:Baldwin IV., See also:count of See also:Flanders, in 997, and afterwards, in 1224, was regularly fortified by See also:- PHILIP
- PHILIP (Gr.'FiXtrsro , fond of horses, from dn)^eiv, to love, and limos, horse; Lat. Philip pus, whence e.g. M. H. Ger. Philippes, Dutch Filips, and, with dropping of the final s, It. Filippo, Fr. Philippe, Ger. Philipp, Sp. Felipe)
- PHILIP, JOHN (1775-1851)
- PHILIP, KING (c. 1639-1676)
- PHILIP, LANOGRAVE OF HESSE (1504-1567)
Philip Hurepel, count of See also:Boulogne
.
It was besieged in 1346, after the See also:battle of See also:Crecy, by See also:Edward III. and held out resolutely by the bravery of See also:Jean de See also:Vienne, its See also:governor, till after nearly a See also:year's See also:siege See also:famine forced it to surrender
.
Its inhabitants were saved from See also:massacre by the devotion of Eustache de St Pierre and six of the chief citizens, who were themselves spared at the See also:prayer of See also:Queen Philippa
.
The See also:city remained in the hands of the English till 1558 , when it was taken by See also:Francis, duke of Guise, at the See also:head of 30,000 men from the See also:ill-provided English See also:garrison, only 800 strong, after a siege of seven days
.
From this See also:- TIME (0. Eng. Lima, cf. Icel. timi, Swed. timme, hour, Dan. time; from the root also seen in " tide," properly the time of between the flow and ebb of the sea, cf. O. Eng. getidan, to happen, " even-tide," &c.; it is not directly related to Lat. tempus)
- TIME, MEASUREMENT OF
- TIME, STANDARD
time the Calaisis or territory of Calais was known as the Pays Reconquis
.
It was held by the Spaniards from 1595 to 1598, but was restored to France by the treaty of Vervins
.
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