Crystal, designed as valuable material, was sought after and appreciated over several generations and remains a symbol of luxury. The leadoxide is added to the mixture of glass to create the Crystal.
The lead gives the Crystal its unique harmonic vibration and the effect rainbow light in the room.To be define “crystal” the material must have a minimum of 7% of oxidizedleadcontent.
To be defined as “Full lead crystal” the material must have a minimum of 24% leadoxidized. The lead adds sparkle, weight and strength to the crystal.
The optical crystalis 100% free of lead. The absence of lead makes the extremely hard optical crystal. This hardness allows you to polishit to perfection making it free from any defects and cut it with angles completely sharp. The optical crystal is produced in slabs of thickness is about. 7.5.
Before solidify is subjected to intense pressure to remove any air bubbles and imperfections.