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The optical characteristics and properties of gemstones often provide the fastest and best methods of identification. A certain amount of theory is necessary as optical principles determine cutting methods, gemstone attributes and the function of gem testing instruments.... (1994) Complete Story
We are assuming you have a 35 mm camera. You will need a ‘single lens reflex’ (SLR) camera with a ‘through the lens’ metering system (TTL). This type of camera allows you to see through the viewfinder what will be recorded on the film. It also allows you take reflected light meter readings from your object through the camera lens. My favorite is a.... (1996) Complete Story
A short review of construction and soldering principles would be a good idea at this point. They're fairly basic. Principles of soldering (or what most of the world terms 'brazing' but jewelers call 'soldering') include: make sure that all joins are recently scraped, cleaned, sanded, or otherwise bared; that you can't see light through a join; that you use tons of flux.... (1996) Complete Story
Aim for: a well laid-out, orderly workshop, well-lit by multiple non glare light sources, well-maintained equipment, electrically and fire safe, with low dust and few procedures involving solvents, with excellent local ventilation at the appropriate work stations (such as investing or melting areas), the use of work clothing, which is cleaned frequently, lots of personal safety equipment.... (2002) Complete Story
In the Jewelers Bench Book, the MJSA/Ganoksin project published in spring 2008, there is an extensive look at what happens in the working space, where you sit and move as a goldsmith. Two of the areas addressed including sitting and looking at objects.... (2008) Complete Story
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