Summary

Mine Type	Open Pit
Study Completed	Preliminary Economic Assessment
Stage	Permitting
Commodities	Lithium Spodumene
Mining Method	Truck & Shovel / Loader
Mine Life	...
Snapshot	Salinas (Colina) Lithium Project is one of the world’s best undeveloped lithium projects and important nearterm source of high quality spodumene concentrate. The preliminary economic assessment demonstrates two-stage operation that produces a high-quality 5.5% Li2O spodumene concentrate (SC5.5) and 3% Li2O (SC3) spodumene tailings concentrate product. The Phase 3 extension and expansion of production will be evaluated in a future Definitive Feasibility Study (DFS). The Brazilian National Mining Agency approved the Integrated Plan of Economic Development submitted by Latin Resources insofar as it relates to the exploitation of lithium in Mineral. The receipt of this approval is an important milestone in obtaining the permits.

Deposit type

• Pegmatite

Summary:

Salinas Lithium Project geology comprises Neoproterozoic age sedimentary rocks of Araçuaí Orogen intruded by fertile Li-bearing pegmatites originated by fractionation of magmatic fluids from the peraluminous S-type posttectonic granitoids of Araçuaí Orogen. Lithium mineralisation is related to discordant swarms of spodumene-bearing tabular pegmatites hosted by biotitequartz schists.

The principle host rock to the pegmatitic intrusions of the Colina Deposit is a medium-grey coloured biotite– quartz schist, which is interpreted to be a metamorphosed flysch of the Eocambrian Salinas Formation (Quéméneur and Lagache, 1999). The schist typically has millimetre to centimetre-size cordierite porphyroblasts and finely disseminated, stretched, iron-sulphide crystals with a preferred orientation that is sub-parallel to the foliation. Minor intercalations of calcsilicate rocks can occur within the schist.

Where weathered, the schist may display sericite-rich zones and micro-crystalline quartz–calcite intercalations that include dark green, disseminated, sub- to millimetre-sized amphibole and pink garnet crystals.

The Colina Deposit consists of a series of stacked shallow to moderately east dipping pegmatitic intrusions. Individual intrusions range from 1 to 25 metres true thickness and the largest intrusions have been traced laterally for up to 1 kilometre.

Lithium mineralisation is related to discordant swarms of spodumene-bearing tabular pegmatites hosted by biotite-quartz schists. Spodumene can form 28–30% of the pegmatite mass, microcline and albite contents range from 30– 35%, with microcline content dominant over albite, muscovite comprises about 5–7% and the remainder of the rock mass consists of quartz. The pale green-coloured spodumene crystals are elongate or tabular, ranging from millimetre to centimetres in scale, and have been observed at metrescale in outcrop. Spodumene cuts the microcline matrix, and intergrowths of spodumene and quartz, sometimes in association with muscovite, are common. Accessory minerals, such as columbite and tantalite form in association with albite and quartz. Late-stage mineralization includes sphalerite and pyrite.

Dimensions
The footprint of the whole mineralisation zone is about 2,000 metres NE-SW by 1,000 metres NW-SE, with about 400 m overall thickness.

The average surface elevation around Colinas 700 m RL. The maximum local RL of the mineralisation is 800.2m and the minimum local RL is 563.2 m.

Mining Methods

- subscription is required.

Comminution

Crushers and Mills

Processing

- subscription is required.

Commodity Production

Operational metrics

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Personnel

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