The mine’s overview
Tocantinzinho is an open-pit gold mine in commercial production located in Pará State, Brazil. The mine started commercial production in September 2024, after two years of construction. TZ currently has an estimated remaining mine life of approximately 11 years with average annual gold production of 155,000 oz.
The existing deposit with 1.96 million ounces of known reserves is located within a large, underexplored land package with exploration potential that may yield satellite mineralized bodies. This 688 km² property has direct access via 100 km of all-weather roads starting from the national highway, linking the industries in southern Brazil to the city of Belem in the north.
About the mine
Location
Tocantinzinho is located in the Tapajós Gold Province, approximately 200 km south-southwest of the city of Itaituba, 100 km from the Morais de Almeida district, and 1,150 km southwest of Belém, the capital city of Pará State.
Itaituba is the local centre for services and supplies, and it is accessible by the BR-163 highway. A 72 km municipal road connects the Project site to the Transgarimpeira state road (BR-230). There is a 775-m airstrip at the site.
Geology & Mineralization
The Tocantinzinho Gold Deposit is located in the south-central Amazon Craton of Brazil, within Pará State. It is hosted in a suite of fractionated Paleoproterozoic granitic rocks, including quartz monzonite, syenite, alkali feldspar granite, granite, and aplite.
Gold mineralization at Tocantinzinho is typical of intrusion-related gold systems and is spatially associated with a major northwest-trending regional fault zone that controlled the emplacement of multiphase intrusions and gold-bearing zones.
Mineralization occurs as fine, irregular networks of quartz, black chlorite, sulfides (pyrite, molybdenite, chalcopyrite), and calcite veinlets that commonly follow grain boundaries. Their irregular, wormy textures indicate formation during the late crystallization stages of the host granite.
The deposit displays distinctive magmatic–hydrothermal transition textures, including unidirectional solidification textures, interconnected miarolitic textures (IMT), rapid grain-size variations from pegmatite to aplite, and vein-dyke structures. Two main rock types host most of the ore: the “Smokey” granite, a pale pink-grey equigranular to coarse-grained unit found mainly at the core of the deposit, and the “Salami” granite, a pink to red alkali feldspar granite with a blebby IMT texture that commonly transitions into aplite–pegmatite zones.
Technical Reports
VRIFY Presentation
Click through the VRIFY presentation below to explore the Tocantinzinho site.
