Gemstone ID - 785 nm

A06 - a

Species : Beryl      
Chemical Formula :     Be3Al2Si6O18
Identification Characteristics : 
Classification:  Silicate
Hardness:7 ~ 8           S.G.:2.6 ~ 2.9
Cleavage: Imperfect    
R.I.: 1.58 ~ 1.59          D.R.: 0.008 
Crystal System: Hexagonal
Fracture: Uneven to Conchoidal 
Spectral Characteristics: 
322、395、684、1068 (cm-1)

A06 - b

Species : Beryl      
Chemical Formula :     Be3Al2Si6O18
Identification Characteristics : 
Classification:  Silicate
Hardness:7 ~ 8           S.G.:2.6 ~ 2.9
Cleavage: Imperfect     
R.I.: 1.58 ~ 1.59          D.R.: 0.008
Crystal System: Hexagonal
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
322、395、684、1068 (cm-1)

A06 - c

Species : Beryl      
Chemical Formula :     Be3Al2Si6O18
Identification Characteristics : 
Classification:  Silicate
Hardness:7 ~ 8           S.G.:2.6 ~ 2.9
Cleavage: Imperfect     
R.I.: 1.58 ~ 1.59          D.R.: 0.008
Crystal System: Hexagonal
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
322、395、684、1068 (cm-1)

Gemstone ID - 532 nm

A06 - a

A06 - b

Species : Beryl      
Chemical Formula :     Be3Al2Si6O18
Identification Characteristics : 
Classification:  Silicate
Hardness:7 ~ 8           S.G.:2.6 ~ 2.9
Cleavage: Imperfect    
R.I.: 1.58 ~ 1.59          D.R.: 0.008
Crystal System: Hexagonal
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
322、395、684、1068 (cm-1)

A06 - c

Species : Beryl      
Chemical Formula :     Be3Al2Si6O18
Identification Characteristics : 
Classification:  Silicate
Hardness:7 ~ 8           S.G.:2.6 ~ 2.9
Cleavage: Imperfect    
R.I.: 1.58 ~ 1.59          D.R.: 0.008
Crystal System: Hexagonal
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
322、395、684、1068 (cm-1)

B10 - a

Species : Barite (Baryte)       
Chemical Formula :  BaSO4   
Identification Characteristics :
Classification: Sulfate
Hardness:3 ~ 3.5    S.G.:4.5
Cleavage: Perfect    
R.I.: 1.63 ~ 1.65      D.R.: 0.012   
Crystal System:  Orthorhombic
Fracture: Uneven
Spectral Characteristics: 
450、615、645、987、1138、1295 (cm-1)

B10 - b

Species : Barite (Baryte)       
Chemical Formula :  BaSO4   
Identification Characteristics :
Classification: Sulfate
Hardness:3 ~ 3.5    S.G.:4.5
Cleavage: Perfect    
R.I.: 1.63 ~ 1.65      D.R.: 0.012   
Crystal System:  Orthorhombic
Fracture: Uneven
Spectral Characteristics: 
450、615、645、987、1138、1295 (cm-1)

B11- a

Species : Benitoite       
Chemical Formula :     BaTiSi3O9   
Identification Characteristics : 
Classification:  Silicate
Hardness:6 ~ 6.5         S.G.:3.64 ~ 3.68
Cleavage: Imperfect       
R.I.: 1.76 ~ 1.80           D.R.: 0.047
Crystal System: Hexagonal
Fracture: Conchoidal to Uneven
Spectral Characteristics: 
263、345、368、394、533、573、 914、928、934、949 (cm-1)

B11 - b

Species : Benitoite       
Chemical Formula :     BaTiSi3O9   
Identification Characteristics : 
Classification:  Silicate
Hardness:6 ~ 6.5         S.G.:3.64 ~ 3.68
Cleavage: Imperfect       
R.I.: 1.76 ~ 1.80           D.R.: 0.047
Crystal System: Hexagonal
Fracture: Conchoidal to Uneven
Spectral Characteristics: 
263、345、368、394、533、573、 914、928、934、949 (cm-1)

B13 - a

Species : Brazilianite       
Chemical Formula :  NaAl2(PO4)2(OH)4   
Identification Characteristics :   
Classification: Phosphate
Hardness:5.5         S.G.:3
Cleavage: Good      
R.I.: 1.60 ~ 1.62     D.R.: 0.027
Crystal System: Monoclinic
Fracture: Conchoidal
Spectral Characteristics: 
279、315、357、411、532、560、600、988、1019、1168 (cm-1)

B13 - b

Species : Brazilianite       
Chemical Formula :  NaAl2(PO4)2(OH)4   
Identification Characteristics :   
Classification: Phosphate
Hardness:5.5         S.G.:3
Cleavage: Good      
R.I.: 1.60 ~ 1.62     D.R.: 0.027
Crystal System: Monoclinic
Fracture: Conchoidal
Spectral Characteristics: 
279、315、357、411、532、560、600、988、1019、1168 (cm-1)

C04

Species : Brookite    
Chemical Formula :  TiO2  
Identification Characteristics :
Classification: Oxide
Hardness:5.5 ~ 6      S.G.:4.1 ~ 4.2
Cleavage: Poor         
R.I.: 2.58 ~ 2.70         D.R.: 0.117
Crystal System:  Orthorhombic
Fracture: Subconchoidal to Uneven
Spectral Characteristics: 
317、411、500、542、637  (cm-1)