Crystal Ball 60mm

Crystal Ball 60mm
 
60mm Clear
 
Includes glass stand
 
This crystal sphere is made from K9 Industry best distortionless crystal
 
K9 crystal, is a variety of optical borosilicate crown glass
 
The letter "K" is a reference to the German word for "crown" (Krone) and the number 9 refers to the lead content of the glass (9%)
 
K9 glass has high optical clarity, and is used in many contexts requiring this characteristic. It has been regarded as a difficult-to-cut material because of its superior mechanical properties
 
It has an elastic modulus per pascal of 8x1010, a Poisson's ratio of 0.21, and a density of 2510 kilograms per cubic meter (less dense than most other leaded glass)
 
Its high refractive index (for a leaded glass) and exceptional clarity combined with low cost have made it desirable for chandeliers, lasers, telescopes, etc
 
Kiwi trader, This Item is located in New Zealand and ready for immediate dispatch
 
Selling since 2018
 
GoodasGoldNZ.com