The granite and other igneous rocks form rounded bosses or prominent pinnacles, according as they are more or less subject to atmospheric decomposition; the pine and the Spanish chestnut flourish on their slopes; iron, lead, copper, tin, graphite, phosphorite, kaolin, steatite, and serpentine are among the products of these crystalline masses. The gneiss and crystalline schists that in part probably represent the Laurentian formation, contain silver, bismuth, molybdenum, and tin; while metamorphic rocks of unknown age are amongst the richest in mines, affording iron, lead, silver, copper, zinc, mercury, manganese, and graphite. The Cambrian formation, a mass of lustrous fissile slate, traversed by white quartz veins, furnishes lead, silver, phosphorite, and gold. The Silurian slates and quartzites yield iron, lead, silver, copper, mercury, manganese, antimony, cobalt, nickel, anthracite, and gold. A few limited patches of Devonian sandstones, quartzites, slates, marls, and limestones, afford iron, zinc, phosphorite, cobalt, and nickel. The Carboniferous series, occupying two per cent. of the surface, includes valuable coal-fields, the immense masses of iron and copper pyrites of the Rio Tinto, Tharsis, and other mines in the province of Huelva, besides iron, zinc, mercury, manganese, antimony, cobalt, nickel, and phosphorite in other districts. The silver-bearing metamorphic rocks of Cartagena, and a portion of the slopes of the Sierra Nevada are classed in the Permian formation. The Triassic conglomerates, sandstones, and variegated marls, which form the usual base of the Secondary rocks, are rich in salt, gypsum, and iron, and afford some copper and zinc. The Jurassic limestones and marls contain asphalte and bituminous slate. The Cretaceous—mainly Neocomian in the south, the Upper Cretaceous predominating in the north—contains the immense iron deposits of Bilbao; valuable beds of lignite resembling coal; lead, zinc, and asphalte mines in the northern provinces, and gold in Granada. In the Eocene formation, which includes the Nummulitic limestone that forms some of the highest summits of the Pyrenees, the celebrated salt-mine of Cardona, in Catalonia, is usually classed. The Miocene beds contain valuable sulphur deposits along the southern coast, and great accumulations of sulphate of soda on the arid steppes of Madrid and other provinces; while gypsum, in which Spain is probably richer than the whole remainder of Europe, is abundant in this formation. Lastly, some native silver is found in the Pliocene deposits of Almeria, and in the Tertiary clays of Guadalajara, while the later gravels of Galicia afford stream tin and gold, the last similarly occurring in Leon and Caceres.
The quantity of mineral contained in the rocks of Spain is no less remarkable than the exceptional variety of its distribution; but owing to a series of adverse circumstances, the industrial production affords a most inadequate idea of the capabilities of the mines, if developed by a fair amount of capital and skill. The following figures, showing the production in 1875, are derived from the last official reports issued by the Spanish Government, and are certainly below the truth:—
| Tons of ore exported. | Tons of metal produced in Spain. | |
| Iron | 336,000 | 37,000 |
| Lead | 10,000 | 119,000 |
| Copper | 362,000 | 6,620 |
| Zinc | 43,000 | 3,820 |
| Manganese | 14,000 | |
| Mercury | 1,425 |
These figures do not include the bar iron produced directly from ore in Spain, nor 160 tons of argentiferous copper ore, 89 tons of cobalt ore, and 440 tons of nickel ore. The silver extracted in Spain amounted to more than 16,000 lbs. troy, while four times that amount was contained in exported argentiferous lead. The coal extracted amounted to 666,000 tons, lignite above 27,000, sulphur above 3000, and phosphorite above 12,000 tons. The year 1875 was, however, peculiarly unfavourable to Spanish mining, and the working of the Bilbao mines, which now produce nearly 2,000,000 tons yearly of excellent iron ore, was then practically suspended by the Carlist war. All disadvantages cannot, however, arrest the steady increase of mineral production in Spain, although under more normal political circumstances the above figures would have been greatly exceeded.
The chief coal district is that of Oviedo, Palencia, Leon, and Santander. The coal-field of Oviedo, occupying an extent of 230 square miles, and including a large number of workable beds, is of excellent quality, but as yet little developed, owing to high railway tariffs, bad condition of ports, traditional prejudices, want of skill and capital, and of a local market for inferior qualities. These obstacles will probably soon be overcome, and the development of the associated iron ores afford an important field of enterprise.
The coal-field of Palencia, a continuation of that of Oviedo, is in course of development by the Northern Railway Company. Smaller coal-fields of great local importance exist in the provinces of Cordova, Seville, Gerona, Burgos, Cuenca, Guadalajara, and Ciudad Real; that of Gerona, although of small extent and very friable quality, has already occasioned the construction of a railway of considerable length. Iron is mainly obtained from Biscay, Oviedo, Murcia, and Almeria, but is abundant in other provinces. Lead is worked chiefly in Murcia, Jaen, Almeria, Badajoz, and Ciudad Real; the presence of antimony or of a predominating admixture of blende is very common, but Spain is on the whole the most important lead-producing country in Europe. Copper is obtained mainly from the Rio Tinto mines and others in Huelva; also from Seville, Palencia, Almeria, and Santander; but many other districts contain veins yielding more or less of copper ore. Zinc has been chiefly procured from superficial pockets of calamine in Santander and the neighbouring districts; but in the form of blende it is widely distributed in association with lead. Silver ores are worked in Almeria and Guadalajara. The immense impregnation of cinnabar of Almaden, in Ciudad Real, affords nearly all the mercury, but a little is obtained from other mines in the same province and in Oviedo, Granada, and Almeria. Manganese is obtained from Huelva, Oviedo, Teruel, Almeria, Murcia, and Zamora. Nickel ore is worked in Malaga; cobalt in Oviedo and Castellon. Tin occurs in a number of small veins in Galicia; and in the rocks of Salamanca, Murcia, and Almeria, as well as in diluvial gravels. The Spanish side of the Pyrenees contains numerous veins of argentiferous lead, many of copper, and some of cobalt, nickel, argentiferous copper, pyrolusite, &c., few of which are worked. The lead-mines on the border between Catalonia and Aragon supplied the Carlists with ammunition during the late civil war. The fact that more than 12,000 concessions of mines already exist in Spain, while a large number of lapsed concessions may be found, affords a better idea of the mineral wealth of the country than the enumeration of the mines actually worked.
That such enormous mineral resources should have as yet yielded no greater results is easily explained. The Roman and Moorish workings, although traditionally of fabulous yield, are of small depth, owing to insufficient machinery for pumping. Till the present century, the working of mines was forbidden by the Spanish Government, with the object of favouring the development of the American colonies. The mining laws of 1825 and 1849, suddenly placing the acquirement of mines within the reach of every substantial peasant, produced a fever of speculation, and a recklessness in the application of unskilled labour, which naturally conduced to the discouragement of mining enterprise, while the recurring civil wars excluded foreign capital and skill. Spaniards have a mania for erecting smelting-works on the mines, a practice occasionally justified by difficulties of transport, but which has caused much loss of capital through inherent difficulties and want of metallurgical skill. Endless litigation, arising from the defects of the first mining laws, and the inexperience of the surveying engineers, contributed to ruin the small capitalists who had attempted to work the mines. Foreign capital is now the chief requirement. The existing mining law, greatly improved since 1868, is the simplest in Europe; the expense of a concession is almost nominal, and the royalties on ore are extremely moderate. Large mining adventures in Spain rapidly develope industrial conditions and profoundly affect the habits of the population. Even in times of civil war a modus vivendi between the conflicting parties can be more easily secured than might be expected. The development of means of transport, already considerable before the last Carlist war, is being seriously resumed under the present Government. The Spanish peasantry, when suitably treated, will be found a fair-dealing, intelligent, and industrious class. It must, however, be remembered that in the peculiar physical, political, municipal, and fiscal conditions of Spain, no mining enterprise can safely be undertaken without thorough investigation of all the external circumstances, claims, and prospects concerned; since more mining speculations have failed from inattention to such matters than from any disappointment as regards the quality or quantity of ore. P. W. S. M.
CHAPTER IV.
ETHNOLOGY, LANGUAGE, AND POPULATION.
ON the first glance at a map of Spain and Portugal we are apt to think that few countries could have so well-defined a frontier as that formed by the Pyrenees, the Mediterranean, and the Atlantic. In so compact a country, and one so distinct and so shut off from the rest of Europe, we should expect to find a more unmixed and a more homogeneous population than in any of those states whose frontiers are more open and conventional. But such is very far from being the case. Even at the present time the Pyrenees are no boundary throughout their whole course, either as to race or language. The Basque overlaps them at one end, and the Provençal at the other. Moreover, they have been a political boundary throughout their whole length only since the middle of the seventeenth century. Navarre was united to the Spanish crown in 1515, and Rousillon to France only in 1659. Ecclesiastically, both the dioceses of Bayonne and of Narbonne advanced far into Spain. So far from the population of Spain being unmixed and pure, the contrary is far nearer the truth. As Senor Tubino has well observed, from its position at the south-western angle of Europe, and the most westerly of Mediterranean lands, beyond which lay only the impassable ocean, it must early have become a very eddy of nations, where all the tribes and races who have successively held command of the Mediterranean must necessarily have halted, over which and in which all invaders who have crossed the Pyrenees from Northern Europe, or have passed the Straits of Gibraltar from Africa, must have surged in almost ceaseless conflict. To think of Spain as ever having been at any given time occupied solely by any single race or people is to lose the clue to her whole history. Of this not only the social and political condition of the country, but the toponymy and nomenclature of her map afford decisive proof.