Otodus
€520.00
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Hardness 1-10; the diamond is mounted in a metal rod.
A magnet, knife, file, and a white streak plate are included for further testing. Incl. manual.
Stored in a wooden box, measurement 23 x 13 x 6 cm.
Size of the specimen approx. 3 x 4cm
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Mohs hardness scale in the box - with samples