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These grow as crystals deep in the Earth (they take 2 to 3 billion years to grow)
these are colour-grading stones for diamonds
1g) AND silver up to 250g = about 8oz)
5x 200mm 1x + 2x 3x 165mm 1x + 2
when we tested it
UV torch 15W + 2660 battery (W2-1) + charger( F10-20) Diamond and Moissanite testers 2 These grow as crystals deepSummary An exceptionally powerful specialist UV light, 15W (yes, fifteen not five). This is a bit 'over the top' for banknotes, stamps, antiques etc. (it will work fine with these, so if you want the absolutely most powerful, go for it!) Its main uses are for urine detection and contamination detection. For contamination: a pharmaceutical lab. bought several of these. They steralise their equipment, but they can never be certain as to how clean it