THE GREATEST GUIDE TO COLOR CENTER DIAMOND CRYSTAL

Some diamonds can also emit gentle for milliseconds to tens of seconds once the excitation is shut off—a phenomenon generally known as phosphorescence.a) The composition of neutral substitutional nitrogen in diamond. Whereas carbon possesses four valence electrons (one for each nearest neighbor), the team-five nitrogen atom possesses 5, leaving y

水晶表面坑洼的地方，有的深，有的浅，这是水晶在成长过程中自然形成的，并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体，由于包裹体和水晶结合部位的结合力不强，当表面抛光时，矿体脱落，留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常�