Fig 145 Large cleavage crack extending throughout the whole stone | |
Fig 146 Distinct fracture cracks, partially with reflections | |
Fig 147 Distinct cracks and crystal inclusions | |
Fig 148 Distinct tension-. cleavage- and fracture cracks, crystal inclusions | |
Fig 149 Several distinct cracks | |
Fig 150 Numerous light and dark cracks and crystal distributed throughout whole stone |
Illustrations P2 | Aids to Clarity Grading |