Mining Capital FundsMCF Mining Approvals Index

Data as at 18 October 2026 · from Western Australian Government registers and open data

Western Australian mining project · Operating

Mt Zephyr Calcrete

Mt Zephyr Calcrete is a Western Australian mining project (operating) in MINEDEX, owned by Minara Resources Ltd 100%, on 9 current tenements held by MURRIN MURRIN OPERATIONS PTY LTD. Commodities: Limestone.

MINEDEX project
J02291
Stage
Operating
Owners (MINEDEX)
Minara Resources Ltd 100%
Tenement holders
MURRIN MURRIN OPERATIONS PTY LTD
Parent groups
Glencore
Commodities
Limestone
Rehabilitation liability
Its rehabilitation liability is in the MCF Mining Index (subscribers): the Mining Rehabilitation Fund estimate, its trend since 2014, company provisions and closure-plan costs

Resources and reserves

CommodityResourcesReservesLatest estimate
Calcium177 Mt at 23.1%, 41.0 Mt contained—31 December 2002
Calcrete-caliche177 Mt at 100.0%, 177 Mt contained—31 December 2002

Current MINEDEX estimates over all the project's sites; resources may include reserves. MINEDEX (DMPE), CC BY 4.0.

Tenements

TenementHolderStatusExpiresCommoditiesHectares
M 39/446
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted2 June 2039Limestone972
M 39/671
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted7 June 2043Limestone136
M 39/672
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted7 June 2043Limestone548
M 39/723
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted7 June 2043Limestone19
M 39/784
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted6 August 2029Limestone984
M 39/786
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted23 November 2029Limestone730
M 39/787
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted23 November 2029Limestone754
M 39/789
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted23 November 2029Limestone808
M 39/820
Mining lease
MURRIN MURRIN OPERATIONS PTY LTDGranted3 December 2028Limestone605