Gemstone ID - 532 nm

A40

Species : Quartz       
Chemical Formula :     SiO2
Identification Characteristics :  
Classification: Oxide
Hardness:7            S.G.:2.65
Cleavage: None  
R.I.: 1.54 ~ 1.55      D.R.: 0.009
Crystal System: Trigonal
Fracture: Conchoidal
Spectral Characteristics: 
260、353、463、809 (cm-1)

C20

Species : Quartzite       
Chemical Formula :     SiO2  
Identification Characteristics : 
Classification:  Silicate
Hardness:7            S.G.:2.65 
Cleavage: None         
 R.I.: 1.54 ~ 1.55    D.R.: 0.009
Crystal System: Hexagonal
Fracture: Uneven
Spectral Characteristics: 
260、353、463、809 (cm-1)