126 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, No. 7 
MINERAL RESOURCES 
Metals.*—At the present time there are no active mining operations 
in the Republic, although prospecting has been carried on in several 
regions and some ore has been shipped. 
The Terre-Neuve district contains probably the most extensive ore 
deposits. Copper is the principal metal in the deposits of this district, 
but there are small amounts of silver and gold. The ore deposits are 
contact metamorphic deposits in the upper Eocene limestone at the 
contact with the intrusive quartz diorite, and vein deposits in the 
porphyritic phase of the quartz diorite, and in the older basalts and 
pyroxene-andesites. Chalcopyrite is the principal copper mineral 
in the contact metamorphic deposits. Pornite and chalcocite are 
the principal copper minerals in the enriched vein deposits. Most 
of the ore is of low grade, although small amounts of rich ore are 
found both in the contact metamorphic deposits and in the enriched 
veins. More thorough prospecting is needed to reveal fully the 
possibilities of the district. ; 
Copper-bearing veins were examined at a number of other places 
in areas of pre-Tertiary igneous rocks. Near Grande-Riviére du 
Nord there are small veins of solid chaleocite ore, but large amounts 
of low-grade ore would have to be mined in order to work them. 
Deposits of manganese ore, apparently hot springs deposits, were 
discovered in the Commune of Gros-Morne. The deposits examined 
are of low grade and contain a prohibitive amount of silica. Another 
deposit at the contact between upper Eocene limestone and basalt 
north of Jacmel is similar in many features to the deposit in the Com- 
mune of Gros-Morne. 
Deposits of magnetite and hematite were examined at Morne 
Beckley in the North Plain. In many parts of the Republic there 
are residual deposits of low grade iron ore consisting of hematite and 
clay. 
Fifteen samples of ores have been assayed and analyzed. 
Non-metals.—The Republic of Haiti contains probably the most 
extensive deposits of lignite in the West Indies. Miocene beds in 
the Central Plain near Maissade contain beds of high-grade lignite 
that have a maximum thickness of 2 meters or more. All of the beds 
examined contain partings of carbonaceous clay and bone that would 
® The statements on the metals and non-metals here given were translated into 
French and published in Rapport annuil de l’Ingénieur en Chef au Secrétaire d’Ptat 
des Travaux Publics, Répub. d’Haiti, pp. 50-52, 1922. 
