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Zimbabwe
Murowa Mine

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 Location:
29 km SE from Zvishavane, Zimbabwe

  Address:
Kenilworth Gardens 1 Kenilworth Road Newlands
Harare
Zimbabwe
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Diamond
Mining Method
  • Truck & Shovel / Loader
Production Start...


Owners

Source: p. 65
CompanyInterestOwnership
RioZim Ltd. (operator) 22.2 % Indirect
RZ Murowa Holdings Ltd. 77.8 % Indirect
Murowa Diamonds is owned in majority by RZ Murowa Holdings (77.8%) with independent mining operator RioZim owning 22.2% of the Company.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Kimberlite
  • Breccia pipe / Stockwork
  • Vein / narrow vein
  • Hydrothermal


Summary:

The Murowa Diamond deposit consists of a cluster of five kimberlite pipes and dykes. The pipes, labelled K1 to K5, lie between two structural features with a North-South trend (Figure 2). To the West is a doleritic dyke and to the east is a major shear zone.

The K1 pipe is considered to be part of a complex blow along a North-South system of kimberlite dykes of which the smaller K3, K4 and K5 bodies are a part of the local controls on K1 are of North-South orientation. However K2’s emplacement was more directly controlled by a reactivation along the shear zone.

The shape of the pipe of the K2 pipe, the eastern side of which is in direct contact with the shear, and the western wall which dips away to the west, is an inverted wedge. This shape is unusual for a kimberlite pipe and it is said almost certainly to result from a structural preparation of the ground. Detailed observation of some dyke contacts with the granite on the western side of K2 indicate that there was indeed some reactivation along the quartz shear occurring at the time of emplacement.

The geology of the Murowa kimberlite pipes is complex comprising of inter-mixing of kimberlite lithologies and different phases of emplacement. The country rock is veined, brecciated and/or metasomatised and fenitised with kimberlitic fluid phases at the kimberlite pipe contact (Moss, 2010). The K1 pipe (the main focus of this study) is modelled as a complex, steep sided multi-lobed kimberlite p ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

A truck and shovel method is used to extract ore from the two open pipes. The waste is drilled and blasted and trucked away using dump trucks. This leaves the ore available for extraction, which is crushed, processed and pumped to the final recovery plant.


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2021202020192018201720162015
Diamond k carats  ......  Subscription required  ......  Subscription required  ......  Subscription required740732433298
Subscription required - Subscription is required.

Operational Metrics:

Metrics201820172014
Tonnes processed 1,018,776 t876,130 t590,244 t

Reserves at December 31, 2014:

CategoryTonnage CommodityGradeRecoverable carats
Probable 4 Mt Diamond 1 carats/t 3.86 M carats
Inferred 4.6 Mt Diamond 0.3 carats/t

Financials:

Units2020201820172016
Revenue M  ......  Subscription required 83.9  USD 79.6  USD 47.4  USD
Pre-tax Income M  ......  Subscription required 12.5  USD 12  USD 2.4  USD
After-tax Income M  ......  Subscription required 6.8  USD 6.2  USD -1.2  USD



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 23, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Sustainability Report 2018
Annual Report 2017
Annual Report 2016
Annual Report 2015
Annual Report 2014
Annual Report 2014
Annual Report 2013
Fact Sheet 2013
Other 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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