1307
4 Magnetic iron ore.
[This mineral is found in the province of Alemtejo ,istrict of Evora , near the place Outeiro da Mina.]
5 Impure carbonate of iron.
[This mineral exists in the province of Alemtejo, dis-trict of Beja, parish of St. Amador, place da Crujeira. Itis found in the remains of former works, and sometimesit is mixed with small portions of carbonate of copper.]
6, 7 Limonite.
8 Yellow ochre.
These three minerals are found in various parts of theprovince of Minho, district of Yianna.
[Yellow ochre is an earthy variety of limonite, mixed^ith argillaceous earth, and often with hydrate of alumina.It is much used as a colouring matter, and when calcinedbecomes red ochre. The limonite is described above.—
T. A.]
Bastos, Jose Ferreira Pinto— Proprietor.
9 Copper ore.
This mineral which has not yet been analyzed, is foundbi the province of Beira, district of Aveiro , place Mina deFalhal.
10- Copper pyrites. Sulphuret of iron and copper.
Found in the province of Alemtejo, district of Beja,parish of Aljustrel , place S. Joao do Deserto. Variouslilies are now in full operation.
Bonnet, Carlos, Lisbon —Producer.
11 Copper pyrites, with native copper.
. Found in the remains of former exploring operations,
the province of Alemtejo, district of Beja, parish ofvilla Nova da Baronia.
Met with in various parts of the province of Minho,district of Yianna.
Nazareth, Antonio Jose Duarte, Lisbon —Producer.13 Galena .
Found in the province da Beira, district de Coimbra,parish d’Arganil Serra da Aveleira.
Ferseveran^a Company, Oporto — Projirietor.
Il Sulphuret of antimony.
[Found in abundance in the province do Minho, dis-lct do Porto , parish of Vallongo. This mine was ex-P 0l ’ed a few years ago, and portions of the productionSen t to England. The workings, for the present, are sus-P e £ded.]
15 Sulphuret of lead and antimony.
Found in the province of Minho, district of Yianna.
16 Cassiterite.
From the province of Minho, district of Oporto, parish°t Bebordoso. This mineral is met with scattered in there mains of inundations, and on the rocks amongst decom-posed pegmatite. The works are at present suspended.
[The mineral called by Beudant Cassiterite \s thecommon tin-stone of mines, and is an oxide of tin, contaming, when pure, 77J per cent, of metal. The impuritiesare oxide of iron, silica, and titanium.]
The Coal-Mining Company op Oporto, Lisbon
Producers.
17 Anthracite. , . .
Extracted from a mine situated in the proviMinho, district of Oporto, parish of S. Pedro de C _•The production is abundant, and it is used for domesPurposes, chiefly in Oporto and Lisbon . The mine, w c
belongs to the State, has been explored for many years,and occasionally it is offered, for a term, by public,auction.
Roque, Jose Joaquim, Delgado —Producer.
18 Lignite.
Pound in abundance in the province of Estremadura ,district of Lisbon, parish of Lourinha , and generally metwith in the remains of eruptions, on the mountains adjoin-ing the ocean. It also exists in many other parts of thesurrounding districts.
Laceeda, Raymundo Veeissimo de Souza—P roducer.
19 Coal.
Found in the province of Estremadura, district of San-tarem, parish of Valle Verde.
Goulabd, — , Producer.
20 Lignite.
Found in the province of Estremadura , district ofLeiria , parish of S. Pedro de Muelo.
[Too little is known of the geology of Portugal to justifyany conclusions concerning these lignites. The extent ofthe deposit is not stated, nor have we any evidence as tothe facilities for working mines, should valuable mineralproperty exist. It is well, however, to direct attention tothe subject by the exhibition of these specimens.—D.T.A.]
21 Graphite.
Found in the province of Minho, district of Vianna.
Bonnet, Caedos, Lisbon —Producer.
22 Graphite.
Found in the province of Alemtejo , district of Porta-legre, parish of St. Salvador, place dos Aimagreiros. Itexists in abundance; but as yet no use has been madeof it.
Subsebba, Maequis de— Producer.
23 Asphalt.
Found in abundance in the province of Estremadura ,district of Leiria, parish of Alcobaca.
24 Bituminous sand.
This sand forms a portion of the preceding mine, andis used in conjunction with asphalte.
Goulard, —, Producer.
25 Asphalt.
Found in the province of Estremadura , district ofLeiria , parish of St. Pedro de Muelo. It forms a layer ofabout 60 feet in thickness, and is situated on the edge ofthe ocean. The mine is now being explored.
26 Sample of the asphalt, worked.
[The asphaltes here exhibited remind the geologist ofthe beds of bituminous sand used for economic purposesin France and Spain . The material is very valuable, ifproperly used, in the manufacture of pavements, and formany other purposes.—X). T. A.]
27 Mineral coal.
Found in the province of Estremadura , district ofSantarem, parish of Valle Verde.
IIiesch, J. M. & Bkothees, Lisbon —Manufacturers.
28 Muriatic acid.
Tins article is extensively manufactured by the exhi-bitors, near Verdelha, in the province of Estremadura ,and it is obtained by the reaction of salt and sulphuricacid. The materials are native products.
29 Sulphuric acid.
This acid is obtained in beds of lead, by the combustionof brimstone with nitrate of soda. The original materialsare of foreign production, but occasionally brimstone isimported from the Portuguese possessions.
4 Z
[Official Illustrated Catalogue.]