Zimbabwe

Arcturus Mine

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Overview

Mine TypeUnderground
StatusActive
Commodities
  • Gold
Production Start... Lock
Mine Life... Lock
SnapshotThe most recent full year production data were publicly available for 2015 (as of May 25, 2021).

The mine was acquired by Businessman Tawanda Nyambirai in 2017.

Apr 20, 2022 - Arcturus Mine's new US$7million gold processing plant is 65 percent complete and set for completion by the third quarter this year.

Owners

SourceSource
CompanyInterestOwnership
TN Securities (Pvt) Ltd. 100 % Indirect
TN gold is a mining company owned by Business mogul Tawanda Nyambira. The company owns Arcturus Gold Mine which previously belonged to Britain based Metallon Gold.

Deposit type

  • Hydrothermal

Summary:

Arcturus is situated (in the Enterprise belt) in the southern limb of the Harare Greenstone Belt. Orebodies generally comprise individual lenses which range from 0.2 m to 5.0 m in width and dip from 55° to 70°.

The Arcturus gold mine, located within the Shamvaian Group, is hosted in the Iron Mask Formation, which comprises a succession of metamorphosed felsic volcanics and associated metasediments including prominent bands of sulphide-facies iron formation, phyllites, meta-arenites, and quartzose schists (Oberthur et al., 2000). The mineralized shear zones in the Arcturus mine are characterized by silicification, biotite, and K-feldspar alteration. Gold mineralization is associated with pyrrhotite, arsenopyrite, and also occurs as free gold, which contributed up to 10% of production.

There are 6 major reefs at Arcturus: Venus, Arcturus, West, Slate, Saturn, Planet.
Venus.
- Ore bodies are irregularly – shaped, discontinuous and lenticular.
- Reefs comprise well banded to laminated siliceous lithologies that consist of millimetre to centimetre units of pink-brown, cherty layers of k-feldspar-quartz-biotite-arsenopyrite which alternate with amphibole – diopside – epidote – plagioclase units containing pyrrhotite and pyrite.
- Pyrrhotite and arsenopyrite are the dominant sulphides.
- Free gold is rare.
- The reefs are arranged in an en echelon array in the alteration zone.
- The ore bodies trend south-easterly and dip at 55 - 70 degrees to the north-east.
- The payshoots show variable pitch towards the west.
- Ore body widths vary from less than a metre to 30 metres.

Venus – Dolerite Dyke.
* The dolerite dyke (25 – 40m thick) dipping 60 degrees SW exists around 2 – 3 level.
* Ore bodies above the dyke were mined from surface.
* The intrusion of the dyke resulted in a reverse movement which subsequently resulted in a vertical displacement of 80 – 90m.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

CommodityUnits2015

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2024
....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2024

Aerial view:

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