Show The Luster of Opals Many gems often otten without any apparent apparent ap ap- parent paTent cause suddenly become cracked crack crack- ed or seamed the damage being beyond beyond beyond be be- yond repair Opals known a as the unluckiest unluckiest un un- luckiest stones are so sensitive that their beauty Is frequently destroyed by their wearers wearer's proximity to an open fire The luster of this stone Is caused caused caus caus- ed by the presence of myriads of little fissures which deflect the light into the characteristic prismatic color of the gem The tiniest of these fissures l Is likely at any moment to destroy the stone dOOL |