Gemstone ID - 532 nm

A20 - a

Species : Hematite      
Chemical Formula :     Fe2O3
Identification Characteristics :
Classification: Oxide
Hardness:5 ~ 6      S.G.:5.26
Cleavage: None     
R.I.: 2.94 ~ 3.22     D.R.: 0.280    
Crystal System: Trigonal
Fracture: Uneven to Subconchoidal
Spectral Characteristics: 
225、245、295、410、501、610 (cm-1)

A20 - b

Species : Hematite      
Chemical Formula :     Fe2O3
Identification Characteristics :
Classification: Oxide
Hardness:5 ~ 6      S.G.:5.26
Cleavage: None     
R.I.: 2.94 ~ 3.22     D.R.: 0.280    
Crystal System: Trigonal
Fracture: Uneven to Subconchoidal
Spectral Characteristics: 
225、245、295、410、501、610 (cm-1)

A21 - a

Species : Hydrogrossular Garnet      
Chemical Formula : 
Ca 3 Al 2 (SiO 4) 3-x (OH) 4x
Identification Characteristics :  
Classification:  Silicate
Hardness:7           S.G.:3.47
Cleavage: None    R.I.: 1.72
Crystal System: Isometric
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
369、409、543、644、693、822、876、931 (cm-1)

A21 - b

Species : Hydrogrossular Garnet      
Chemical Formula : 
Ca 3 Al 2 (SiO 4) 3-x (OH) 4x
Identification Characteristics :  
Classification:  Silicate
Hardness:7           S.G.:3.47
Cleavage: None    R.I.: 1.72
Crystal System: Isometric
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
369、409、543、644、693、822、876、931 (cm-1)

A21- c

Species : Hydrogrossular Garnet      
Chemical Formula : 
Ca 3 Al 2 (SiO 4) 3-x (OH) 4x
Identification Characteristics :  
Classification:  Silicate
Hardness:7           S.G.:3.47
Cleavage: None    R.I.: 1.72
Crystal System: Isometric
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
369、409、543、644、693、822、876、931 (cm-1)

A21 - d

Species : Hydrogrossular Garnet      
Chemical Formula : 
Ca 3 Al 2 (SiO 4) 3-x (OH) 4x
Identification Characteristics :  
Classification:  Silicate
Hardness:7           S.G.:3.47
Cleavage: None    R.I.: 1.72
Crystal System: Isometric
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
369、409、543、644、693、822、876、931 (cm-1)

B28 - a

Species : Hemimorphite       
Chemical Formula :    Zn4Si2O7(OH)2‧H2O  
Identification Characteristics :
Classification:  Silicate
Hardness:4.5 ~ 5      S.G.:3.4 ~ 3.5
Cleavage: Perfect   
R.I.: 1.61 ~ 1.64         D.R.: 0.022      
Crystal System:  Orthorhombic
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
329、398、450、675、931 (cm-1)

B28 - b

Species : Hemimorphite       
Chemical Formula :   Zn4Si2O7(OH)2‧H2O  
Identification Characteristics :
Classification:  Silicate
Hardness:4.5 ~ 5      S.G.:3.4 ~ 3.5
Cleavage: Perfect   
R.I.: 1.61 ~ 1.64         D.R.: 0.022      
Crystal System:  Orthorhombic
Fracture: Uneven to Conchoidal
Spectral Characteristics: 
329、398、450、675、931 (cm-1)

C16 - a

Species : Hibschite  (Hydro grossularite)      
Chemical Formula : Ca3Al2(SiO4)3-x(OH)4x   
Identification Characteristics : 
Classification:  Silicate
Hardness:6.5         S.G.:3.06 ~ 3.25
Cleavage: None          
Crystal System: Isometric
Fracture: Uneven
Spectral Characteristics: 
369、413、479、545、646、693、824、877、930 (cm-1)

C16 - b

Species : Hibschite  (Hydro grossularite)      
Chemical Formula : Ca3Al2(SiO4)3-x(OH)4x   
Identification Characteristics : 
Classification:  Silicate
Hardness:6.5         S.G.:3.06 ~ 3.25
Cleavage: None          
Crystal System: Isometric
Fracture: Uneven
Spectral Characteristics: 
369、413、479、545、646、693、824、877、930 (cm-1)

C16 - c

Species : Hibschite  (Hydro grossularite)      
Chemical Formula : Ca3Al2(SiO4)3-x(OH)4x   
Identification Characteristics : 
Classification:  Silicate
Hardness:6.5         S.G.:3.06 ~ 3.25
Cleavage: None          
Crystal System: Isometric
Fracture: Uneven
Spectral Characteristics: 
369、413、479、545、646、693、824、877、930 (cm-1)