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Tools & Equipment - Gemmological Instruments


L INSTRUMENTS


Diffraction Spectroscope For pure transparent (non opaque) stones. Each type of stone has its own spectrum colour diagnostic. Simular to the prism spectroscope but works by diffracting white light to give non prismatic perspective.


Light enters through a narrow slit and is then diffracted by a thin film of diffraction grating material. This produces a linear spectrum image with a generally larger view of the red part than a prism spectroscope. The spectroscope is a small and handy instrument that can be very quick to use.


• Some gem materials modify this white light in a way which can aid identification.


• Size length 55mm • Diameter of body 13mm • Diameter of lens 5mm • Finish stainless steel body. • Top & bottom black plastic viewers • Weight 14grms • With leather case


E9518 £53.85 Each


Prism Spectroscope with Focus Option Used to test less pure transparent (opaque) gem materials including rough and broken pieces, fashioned pieces, strings of beads, gems set in jewellery, ornaments and carvings.


Our prism spectroscope (unlike others available on the market) gives the observer the flexibility to adjust the focus to suit the user's eyesight, whilst extending the blue area of the spetrum for easier observation. This also allows those who wear galsses to more easily use the tool.


When Looking through a spectroscope you will see lines or bands missing from the colours. This is where elements within the stone have absorbed that level on energy or light, letting us know that element exists within the stone.


Features: Adjustable focus and slit. Black shell to avoid reflective light disturbance. Size: 85mm x 20mm Diameter of lens top -7mm bottom - 10mm


Weight: 45g E33808 £89.95 Each


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