The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!
From the Wiki University
What evidence can you provide to prove your understanding of each of the following citeria?
Identify type of opal rough.
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Undertake preliminary investigations before deciding how to proceed with cutting or carving the opal. Completed |
Evidence:
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Review current market requirements and consult with the owner to determine his/her preference for how it should be cut. Completed |
Evidence:
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Based on knowledge of the geological formation of opal, field from which the opal came and past experience, determine the location of the colour within the rough opal. Completed |
Evidence:
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Discuss possible strategies for cutting with colleagues and clients. Completed |
Evidence:
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Determine jewellers' requirements for products being considered. Completed |
Evidence:
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Review the options for cutting and plan cut to achieve the best result. Completed |
Evidence:
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Block off the stone (boulder opal).
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When working with boulder opal, use a series of cuts to block off stone to gain more information about position and quality of the opal present in the stone and determine best gem outcomes from that piece of boulder. Completed |
Evidence:
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Cuts should aim to identify position of opal and minimise waste. Completed |
Evidence:
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If appropriate, split block opal along fault lines. Completed |
Evidence:
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Expose the colour.
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Use appropriate equipment to expose the colour without going too deep and removing gem material. Completed |
Evidence:
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Select the correct grinding wheels and grits for a given piece. Completed |
Evidence:
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Decide on whether to cut and/or carve the opal.
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Review the stone, determine the directionality and decide on the final outcome to be achieved. Completed |
Evidence:
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Remove unwanted material and prepare the stone for final processing. Completed |
Evidence:
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Select the way to cut the stone for the best artistic and commercial return. Completed |
Evidence:
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Follow OHS principles when operating machinery.
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Follow all general OHS principles and Safe Operating Procedures when using machinery for opal cutting. Completed |
Evidence:
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