Adamas Gemological Laboratory

Gemological Properties Selection Screen

The database and parameter selection menu provides for input of observed values of gemological properties including:

 

• Basic Color 
• Transparency 
• Luster 
• Fracture 
• Dispersion Characteristics 
• Phenomena 
• Pleochroism Characteristics 
• Optic Character 
• Optic Sign 
• Crystal System 
• Crystal Class 
• Long Wave Fluorescence Color 
• Short Wave Fluorescence Color 
• Specific Gravity 
• Hardness 
• Refractive Indices 
• Birefringence 
• Apparent Two V Angle 
• Spectral Characteristics 
• Elemental Composition 
• Radioactivity 
• Streak Test Results 
• Cleavage Characteristics

Adamas Gemological Laboratory

Gem Stone Colors

Gemstone colors are characterized with one of the following colors:

• Clear
• Purple
• Red
• Orange
• Yellow
• Green
• Blue
• Violet
• Brown
• White
• Gray
• Black

Adamas Gemological Laboratory

Gemstone Transparency

Gemstone transparency is characterized with one of the following terms:

• Transparent
• semitransparent
• Translucent
• semitransluscent
• Opaque

Adamas Gemological Laboratory

Gemstone Luster

Gemstone luster is characterized with one of the following terms:

• Metallic
• Sub Metallic
• Adamantine
• Sub Adamantine
• Vitreous
• Greasy
• Resinous
• Waxy
• Dull
• Silky
• Pearly

Adamas Gemological Laboratory

Gemstone Fracture

Gemstone fracture is characterized with one of the following terms:

• Conchoidal
• Sub-Conchoidal
• Splintery
• Granular
• Even
• Uneven
• steplike
• None Observed

Adamas Gemological Laboratory

Gemstone Dispersion

Gemstone dispersion is characterized with one of the following terms:

• Weak
• Moderate
• Strong
• Very Strong
• Not Evident

Adamas Gemological Laboratory

Gemstone Phenomena

Gemstone phenomena is characterized with one of the following terms:

• Asterism
• Adularescence
• Adventurescence
• Chatcoyency
• Color Change
• Girasol
• Iridescence
• Labradorescence
• Orient
• Play of Color
• None Observed

Adamas Gemological Laboratory

Gemstone Pleochroism

Gemstone pleochroism is characterized with one of the following terms:

• None
• Strong Dichroic
• Moderate Dichroic
• Weak Dichroic
• Strong Trichroic
• Moderate Trichroic
• Weak Trichroic
• Not Tested

Adamas Gemological Laboratory

Gemstone Optic Character

Gemstone optic character is characterized with one of the following terms:

• Unknown
• Singly Refractive
• Singly Refractive or Aggregate
• Doubly Refractive
• Doubly Refractive or Aggregate
• Aggregate

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Adamas Gemological Laboratory

Gemstone Optic Sign

Gemstone optic sign is characterized with one of the following terms:

• Unknown
• Isotropic
• Uniaxial
• Uniaxial Positive
• Uniaxial Negative
• Biaxial
• Biaxial Positive
• Biaxial Negative

Adamas Gemological Laboratory

Gemstone Crystal System

Gemstone crystal system is characterized with one of the following:

• Cubic
• Tetragonal
• Hexagonal
• Hex-Triagonal
• Orthorhombic
• Monoclinic
• Triclinic
• Monoclinic/Orthorhombic
• Monoclinic/Triclinic
• Amorphous
• Unknown

Adamas Gemological Laboratory

Gemstone Crystal Class

Gemstone crystal class is characterized with one of the following classes:

• Pedial
• Pinacoidal
• Domatic
• Sphenoidal
• Prismatic
• Orthorhombic Pyramidal
• Orthorhombic Dispenoidal
• Orthorhombic Dipyramidal
• Trigonal Pryamidal
• Rhombahedral
• Ditrigonal Pryamidal
• Trigonal Trapezohedral
• Hexagonal Scaleohedral
• Trigonal Dipyramidal
• Hexagonal Pyramidal
• Hexagonal Dipyramidal
• Ditrigonal Dipyramidal
• Dihexagonal Pyramidal
• Hexagonal Trapezohedral
• Dihexagonal Dipyramidal
• Tetragonal Disphenoidal
• Tetragonal Pyramidal
• Tetragonal Dipyramidal
• Tetragonal Scaleohedral
• Ditetragonal Pyramidal
• Tetragonal Trapezohedral
• Ditetragonal Dipyramidal
• Tetardoidal
• Diploidal
• Hextetrahedral
• Gyroidal
• Hexoctahedral
• Unknown

Adamas Gemological Laboratory

Gemstone Long Wave Fluorescence

Gemstone long wave fluorescence color is characterized with one of the following:

• None
• Purple
• Red/Pink
• Orange
• Yellow
• Green
• Blue
• Violet
• Brown/Tan
• White
• Untested

Adamas Gemological Laboratory

Gemstone Short Wave Fluorescence

Gemstone short wave fluorescence color is characterized with one of the following:

• None
• Purple
• Red/Pink
• Orange
• Yellow
• Green
• Blue
• Violet
• Brown/Tan
• White
• Untested

Adamas Gemological Laboratory

Gemstone Specific Gravity

Measurements of gemstone specific gravity are input with spinner controls. Specific gravity matching is based on the observed value plus or minus a user supplied measurement tolerance.

Adamas Gemological Laboratory

Gemstone Hardness

Measurements of gemstone hardness are input with spinner controls. Hardness test matching is based on the observed value plus or minus a user supplied measurement tolerance.

Adamas Gemological Laboratory

Gemstone Refractive Index

Measurements of refractive index (lowest, intermediate[beta] and highest[gamma]) are inputted with spinner controls. Refractive index matching is based on the observed value plus or minus a user supplied measurement tolerance.

Adamas Gemological Laboratory

Gemstone Birefringence

Measurements of gemstone birefringence are input with spinner controls. Birefringence matching is based on the observed value plus or minus a user supplied measurement tolerance.

Adamas Gemological Laboratory

Gemstone Apparent Two V

Measurements of biaxial gemstone apparent Two V angles are inputted with spinner controls. The mathematical conversion between apparent and true Two V Angle is automatic. Two V Angle matching is based on the observed value plus or minus a user supplied measurement tolerance.

Adamas Gemological Laboratory

Gemstone Spectral Information

Measurements of spectral characteristics are input with spinner controls. Spectral characteristic matching is based on the observed value plus or minus a user supplied measurement tolerance.

• Not Tested
• Weak Line
• Strong Line
• Weak Band
• Strong Band
• Weak Line Group
• Strong Line Group
• Weak Doublet
• Strong Doublet

Adamas Gemological Laboratory

Gemstone Chemical Composition By Elements

Selection of one or more elements known to be present is accomplished with selection buttons. Chemical composition is checked for presence of the particular element. User may select whether all or any of the elements selected from the list have to be present to be considered a match.

Adamas Gemological Laboratory

Gemstone Radioactivity

Indication of gemstone radioactivity is input with a check box. Chemical composition is checked for presence of naturally radioactive elements such as Uranium. Presence of radioactive isotopes of normal elements are not checked.

Adamas Gemological Laboratory

Gemstone Streak Test Color

Streak test result inputs is provided by pop ups with one of the following color characteristics:

• Untested
• colorless
• white
• silver white
• tin white
• gray
• light gray
• silver gray
• steel gray
• lead gray
• dark gray
• black
• dull black
• iron black
• grayish black
• brownish black
• greenish black
• brown
• reddish brown
• blackish brown
• yellowish brown
• grayish brown
• dark brown
• very dark brown
• yellow
• lemon yellow
• orange yellow
• pale yellow
• golden yellow
• greenish yellow
• brownish yellow
• red
• brick red
• brownish red
• cherry red
• copper red
• crimson red
• dark red
• pale red
• purple red
• scarlet red
• vermilion red
• green
• dark green
• grayish green
• pale green
• blue
• grayish blue
• indigo blue
• pale blue

Adamas Gemological Laboratory

Gemstone Cleavage

Cleavage observation input control is provided by pop ups with one of the following characteristics:

• Unknown
• None
• 1 Plane
• Basel 1 Plane
• Pinacoidal 1 Plane
• Orthopinacoidal 1 Plane
• Brachypinacoidal 1 Plane
• Clinopinacoidal 1 Plane
• 2 Planes
• Prismatic 2 Planes
• 3 Planes
• Cubic 3 Planes
• Prismatic 3 Planes
• Rhombohedral 3 Planes
• 4 Planes
• Octahedral 4 Planes
• 6 Planes
• Dodecahedral 6 Planes

      Adamas Gemological Laboratory

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Gemstone Properties Screen

Gemstone Properties Comments Screen

Gemstone Properties Inventory Screen

Gemstone Description Screen