• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Australia
Keysbrook Mine

This page is not tailored to
devices with screen width under 750 px.
 Location:
20 km NE from Mandurah, Western Australia, Australia

  Address:
1424 Hopeland Road,
PO Box 86
North Dandalup
Western Australia, Australia
6207
Phone  ...  Subscription required
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Australia
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Heavy Minerals
  • Leucoxene
  • Zircon
Mining Method
  • Truck & Shovel / Loader
Processing
  • Electrostatic separation
  • Spiral concentrator / separator
  • Dewatering
  • Magnetic separation
Mine Life8 years (as of Jan 1, 2019)
Latest NewsDoral’s purchase of MZI’s Keysbrook mine saves jobs     July 2, 2019


Owners

Source: p. 3
CompanyInterestOwnership
Doral Pty Ltd. 100 % Indirect
The Keysbrook Mine and operating entity, Keysbrook Leucoxene Pty Ltd (KLPL), were acquired from MZI Resources Ltd (formerly the parent company of KLPL) by Doral Mineral Sands Pty Ltd on 1 July 2019.

Doral Pty Ltd is wholly owned by Iwatani Corporation of Japan. The Doral Pty Ltd includes Doral Mineral Sands Pty Ltd.

Deposit Type

  • Mineral sands


Summary:

The project lies within the Swan Coastal Plain, approximately 3 km west of the Darling Scarp (which is the surface expression of the Darling Fault). The Darling Fault separates the Precambrian Yilgarn Block sequences from the Phanerozoic strata of the Swan Coastal Plain. The fault has an estimated maximum displacement of 15 km and, as a result of erosion, lies approximately 1 to 2 km west of the present scarp.

The Swan Coastal Plain extends from the Darling Scarp to the Indian Ocean, and ranges up to 75 m above sea level. A narrow piedmont zone occurs at the base of the scarp comprising alluvial fans and remnants of two strand-line deposits: the Ridge Hill Sandstone and the Yoganup Formation. West of the piedmont zone lies an alluvial swathe up to 10 km wide, termed the Pinjarra Plain. The Pinjarra Plain, comprising the Guildford Formation, ranges in elevation from 6 to 50 m and is overlain to the west by a series of coastal sand dunes. The oldest of these sequences is the Pleistocene Bassendean Sand, which hosts the Keysbrook Mineral Sand Deposit.

The Guildford Formation is characterised by clay, loam, sand and gravel of alluvial origin, with variable laterisation and podsolization. The Bassendean Sand and Guildford Formation have a combined thickness of 10 to 15 m and unconformably overlie about 50 to 130 m of Creataceous Leederville Formation. In the western portion of the project area the Leederville Formation conformably overlies the Cretaceous South Perth Shale, and in the eastern part it conformably overlies the Jurassic Cattamarra Coal Measures.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Keysbrook project covers a shallow orebody with an average depth of two metres, making it very simple to mine and rehabilitate.

Mining involves earthmoving similar to subdivision earthworks, using a small fleet of conventional excavators, front-end loaders, articulated dump trucks, dozers and graders.

First, top soil is removed and stored for rehabilitation. An excavator then removes the ore and stockpiles it next to the Mine Field Unit (MFU) for processing.

At the MFU, ore is mixed with water and passed over vibrating screens to remove coarse non-mineralised waste. The remaining mineralised ore is then pumped to the Wet Concentrator Plant (WCP) as a slurry.

Mining operations are daytime hours only, between the hours of 7am and 6pm. Ore processing remains a 24/7 operation, with the Mining Feed Unit (MFU) fed by ore from a stockpile during the night period.

Mining has changed from a combined effort of KLPL and contractor personnel and equipment to now solely contract mining using Pinjarra based earth moving company, Raywell Contracting. As a consequence of this change, many of the people employed by KLPL have been re-employed by Raywell Contracting.


Crushing and Grinding


Processing

  • Electrostatic separation
  • Spiral concentrator / separator
  • Dewatering
  • Magnetic separation

Flow Sheet: Subscription required

Summary:

The ore is processed in two stages:

1. At the Wet Concentrator Plant (WCP), the ore passes through multiple spirals using water and gravity to further separate heavier minerals from non-mineralised sand. This is a chemical-free process that creates a Heavy Mineral Concentrate (HMC).

The WCP featured overland pumping, thickening and tailings storage infrastructure and had a design throughput of 4.5mtpa to produce circa 119ktpa of HMC. The HMC was processed further at the Doral (Picton) Mineral Separation Plant (MSP) to produce approximately 68ktpa of leucoxene and 28ktpa of zircon concentrate for export.

In December 2017, MZI Resources Ltd commenced modification works on its Keysbrook processing facilities and Picton Mineral Separation Plant (“MSP”). These works were undertaken to increase MZI’s mineral throughput capacity from approximately 4Mtpa to 5.25Mtpa in order to reduce unit costs and improve operating margins across the business. The annual HMC ........

Recoveries & Grades:

CommodityParameter201820172016
Heavy Minerals Head Grade, % 2.892.682.61

Production:

CommodityProductUnits2019 *201820172016
Leucoxene t  ......  Subscription required *
Zircon Concentrate t  ......  Subscription required *  ......  Subscription required  ......  Subscription required  ......  Subscription required
Heavy Minerals Concentrate t  ......  Subscription required  ......  Subscription required  ......  Subscription required
Leucoxene L88 t  ......  Subscription required29,80210,297
Leucoxene L70 t  ......  Subscription required16,95212,140
* Average annual production reported in 2019
Subscription required - Subscription is required.

Operational Metrics:

Metrics201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required2,522,311 t
Tonnes processed  ......  Subscription required  ......  Subscription required2,385,321 t
Annual processing capacity  ......  Subscription required  ......  Subscription required
Annual processing capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at June 30, 2018:

CategoryTonnage CommodityGradeContained Metal
Proven 53 Mt Heavy Minerals 2.2 % 1.2 Mt
Proven 1.2 Mt Zircon 11.8 %
Probable 4.6 Mt Heavy Minerals 2.1 % 0.1 Mt
Probable 0.1 Mt Zircon 10.7 %
Proven & Probable 57.6 Mt Heavy Minerals 2.2 % 1.3 Mt
Proven & Probable 1.3 Mt Zircon 11.7 %
Total Resource 78.2 Mt Heavy Minerals 2.2 % 1,710 kt
Total Resource 1,710 kt Zircon 11.8 %

Financials:

Units201820172016
Capital expenditures M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Jan 18, 2021
....................... Subscription required ....................... Subscription required Subscription required Jan 18, 2021
....................... Subscription required ....................... Subscription required Subscription required Jan 18, 2021
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Jan 18, 2021
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Annual Report 2016
Technical Report 2016
Year-end Mineral Reserves 2016
Corporate Presentation 2015
Fact Sheet 2015
Subscription required - Subscription is required.

News:

NewsDate
Doral’s purchase of MZI’s Keysbrook mine saves jobs July 2, 2019

Aerial view:

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2020 MDO Data Online Inc.