
Glossary of terms and abbreviations
Mining related terms
Alumina
Aluminium oxide (Al₂O₃). Alumina is produced
from bauxite in the Bayer refining process. It’s
then converted (reduced) in an electrolysis cell
to produce aluminium metal.
Ash
Inorganic material remaining after combustion
of coal.
ASX Listing Rules (Chapter 5): Additional
reporting on mining and oil and gas
production and exploration activities
This chapter of the ASX Listing Rules sets
out additional reporting and disclosure
requirements for mining entities, oil and gas
entities, as well as other entities reporting on
mining and oil and gas activities.
AusIMM
The Australasian Institute of Mining and
Metallurgy.
Bauxite
Principal commercial ore of aluminium.
Beneficiation
The process of physically separating ore from
gangue to produce a mineral concentrate prior
to subsequent processing.
Brownfield
An exploration or development project located
within an existing mineral province, which can
share infrastructure and management with an
existing operation.
Coal Reserve
The same meaning as Ore Reserve, but
specifically concerning coal.
Coal Resource
The same meaning as Mineral Resource, but
specifically concerning coal.
Coking coal
Used in the manufacture of coke, which is used
in the steelmaking process by virtue of its
carbonisation properties. Coking coal is a form
of, and may also be referred to as, metallurgical
coal.
Competent Person
A minerals industry professional who is a
Member or Fellow of The Australasian Institute
of Mining and Metallurgy, or of the Australian
Institute of Geoscientists, or of a ‘Recognised
Professional Organisation’, as included in a list
available on the JORC and ASX websites. These
organisations have enforceable disciplinary
processes, including the powers to suspend or
expel a member.
A Competent Person must have a minimum
of five years’ relevant experience in the style
of mineralisation or type of deposit under
consideration and in the activity that the
person is undertaking (JORC Code).
Cut-off grade
The lowest grade, or quality, of mineralised
material that qualifies as economically
mineable and available in a given deposit.
It may be defined on the basis of economic
evaluation, or on physical or chemical
attributes that define an acceptable product
specification (JORC Code).
Energy coal
Used as a fuel source in electrical power
generation, cement manufacture and various
industrial applications. Energy coal may also be
referred to as steaming or thermal coal.
Exploration Results
Exploration Results include data and
information generated by mineral exploration
programs that might be of use to investors
but which do not form part of a declaration
of Mineral Resources or Ore Reserves (JORC
Code).
Flotation
A method of selectively recovering minerals
from finely ground ore using a froth created
in water by specific reagents. In the flotation
process, certain mineral particles are induced
to float by becoming attached to bubbles of
froth and the unwanted mineral particles sink.
Foreign Estimate
An estimate of quantity and grade of
mineralisation that was prepared using a
mineral resources classification and reporting
standard from another jurisdiction prior to an
entity acquiring, or entering into an agreement
to acquire, an interest in a mining tenement
that contains the deposit, and which the entity
has not verified as mineral resources or ore
reserves in accordance with JORC Code.
Grade
Any physical or chemical measurement of the
characteristics of the material of interest in
samples or product (JORC Code).
Greenfield
An exploration or development project that
refers to a new venture or operation, without
any association or proximity to a current
operation.
Indicated Mineral Resource
That part of a Mineral Resource for which
quantity, grade (or quality), densities, shape
and physical characteristics are estimated
with sufficient confidence. This allows the
application of Modifying Factors in sufficient
detail to support mine planning and evaluation
of the economic viability of the deposit (JORC
Code).
Inferred Mineral Resource
That part of a Mineral Resource for which
quantity and grade (or quality) are estimated
on the basis of limited geological evidence and
sampling. Geological evidence is sufficient to
imply but not verify geological and grade (or
quality) continuity (JORC Code).
JORC
Joint Ore Reserves Committee comprising
representatives of The Australasian Institute
of Mining and Metallurgy (AusIMM), Australian
Institute of Geoscientists (AIG) and Minerals
Council of Australia (MCA) as well as the
Australian Securities Exchange (ASX), the
Financial Services Institute of Australasia
(FinSIA) and the accounting profession.
JORC Code
The Australasian Code for reporting of
Exploration Results, Mineral Resources and Ore
Reserves 2012 Edition prepared by the JORC.
Laterite
A residual soil or deposit formed by the
leaching of silica from rocks under specific
climatic conditions.
Leaching
The process by which a soluble metal can be
economically recovered from minerals in ore by
dissolution.
Life of Operation Plan
The combination of an Optimised Base Plan
and incremental opportunities available to the
operation for maximising value.
Marketable Coal Reserves
Represents beneficiated or otherwise
enhanced coal product where modifications
due to mining, dilution and processing have
been considered (JORC Code).
MAusIMM
Member of the Australasian Institute of Mining
and Metallurgy.
MAusIMM (CP)
Accredited Chartered Professional status of
members of the AusIMM. These members
have undergone an assessment of their
competencies, which are maintained through
continuing professional development activities.
Measured Mineral Resource
That part of a Mineral Resource for which
quantity, grade (or quality), densities, shape
and physical characteristics are estimated with
confidence sufficient to allow the application
of Modifying Factors to support detailed mine
planning and final evaluation of the economic
viability of the deposit (JORC Code).
Metallurgical coal
A broader term than coking coal that includes
all coals used in steelmaking, such as coal used
for the pulverised coal injection process.
Mineral reserve
A mineral reserve is the economically mineable
part of a measured and/or Indicated mineral
resource. It includes diluting materials and
allowances for losses, which may occur
when the material is mined or extracted and
is defined by studies at pre-feasibility or
feasibility level as appropriate that include
application of Modifying Factors. Such studies
demonstrate that, at the time of reporting,
extraction could reasonably be justified.
Mineral Resource
A concentration or occurrence of solid
material of economic interest in or on the
Earth’s crust in such form, grade (or quality),
and quantity that there are reasonable
prospects for eventual economic extraction.
The location, quantity, grade (or quality),
continuity and other geological characteristics
of a Mineral Resource are known, estimated
or interpreted from specific geological
evidence and knowledge, including sampling.
Mineral Resources are sub-divided, in order of
increasing geological confidence, into Inferred,
Indicated and Measured categories (JORC
Code).
Mineralisation
Any single mineral or combination of minerals
occurring in a mass, or deposit, of economic
interest (JORC Code).
Modifying Factors
Considerations used to convert Mineral
Resources to Ore Reserves. These include,
but are not restricted to, mining, processing,
metallurgical, infrastructure, economic,
marketing, legal, environmental, social and
governmental factors (JORC Code).
MSAIMM
Member of the Southern African Institute of
Mining and Metallurgy.
Net smelter return
An estimate of revenue derived from the sale
of products and concentrates following the
application of metallurgical recoveries and
deducting transport costs, treatment and
refining charges, penalties and royalties.
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INFORMATION