Required skills

sample identification

classing

weighing skills

problem solving

recording and stock control procedures

Required knowledge

origin of the types and forms of opal

knowledge of types of cutting styles

procedures for handling and storage

areas of risk of theft

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessment must confirm knowledge of the handling and storage of opal in the work environment

In particular assessment must confirm the ability to

Identify explain and apply safe and appropriate procedures for the handling and storage of rough or cut and polished opal

Be able to evaluate the areas where there is risk of loss and theft and follow risk minimising procedures

Context of and specific resources for assessment

This unit may be assessed in a work environment in a simulated work environment or in a combination of these situations

Method of assessment

For valid and reliable assessment of this unit evidence should be gathered through a range of methods to indicate consistent performance

Assessment of this unit of competence will usually include observation of processes and procedures oral andor written questioning on underpinning knowledge and skills and other methods as required

Assessment methods should closely reflect workplace demands eg literacy and the needs of particular groups eg people with disabilities and people who may have literacy or numeracy difficulties such as speakers of languages other than English remote communities and those with interrupted schooling

Competence in this unit must be assessed over a period of time in order to ensure consistency of performance over the range of variables and contexts applicable to the work environment

Assessment of this competency requires access to

various samples of rough and cut opal scales storage locations bags recording materials

a qualified workplace assessor or assessment team

Types of rough opal may include:

Appropriate storage conditions and locations may include:

Ways in which damage to rough or cut and polished opal might occur may include:

Preventative measures for cut and polished opal may include:

Areas of risk may include:

Strategies for minimising risk and safeguarding opal may include:

Stock control system may be:

Stock may be: