The easy way to answer two basic questions - 'what are the characteristics of the stone I’m measuring?' and 'are these characteristics natural?' is with the Ava-GEM spectroscopy bundle. The kit includes an integrating sphere and a special gemology white reference tile to determine fast and without a doubt what the answers to your two questions will be.

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Typical applications:

• Colour
• Natural or artificial
• Artificial colouring

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Note: Bundle not illustrated in image