Pregunta:
What three types of testing are X-ray machines commonly used for in gemmology?
Autor: Emma Begent-CoveRespuesta:
Diamonds against visual simulants
0 / 5 (0 calificaciones)
3 answer(s) in total
Respuesta alternativas:
Glass fillings in stones
Freshwater/Cultured pearls
Autor
Emma Begent-Cove