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23 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Concaved facet and moulding marks on imitation paste gem |
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Gilson synthetic opal showing columnar structure |
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Soude stone dry and immersed |
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Polariscope anomalous Extinction in glass, "writhing snakes" |
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Partly Devitrified glass |
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Bubble in glass |
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Moulding marks in glass |
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Crest synthetic Amber exhibiting brown and grey feathers |
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Gilson synthetic opal |
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Slocum stone synthetic opal |
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Bubbles in the junction plane of a GTD |
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Plastic simulant of tortoise shell |
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Fibre optic glass cat's eye |
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Plastic opal simulant |
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Pressed Amber; small transparent areas in a cloudy Matrix |
small transparent areas in a cloudy Matrix |
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Conchoidal fracture in glass |
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Bubbles in glass |
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Rough CZ |
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Red edges visible in garnet topped doublet |
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Shiny fracture in glass simulant |
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GTD |
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Double refraction and needle like inclusions in synthetic moissanite |
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Soude stone |
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