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The^Bob: Polylactic acid biodegradable cup, fluorescence and UV transmission
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The^Bob: Red fluorescing fluorite
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The^Bob: lapis lazuli - haüyne comparison
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The^Bob: Reflectance and fluorescence of lapis lazuli
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The^Bob: Vibronic emission in fluorite
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The^Bob: Vibronic absorption in fluorite
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The^Bob: Perylene in blue amber - spectra
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The^Bob: Perylene in in blue amber - term diagram
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The^Bob: Hyalite uv-ir transmission and fluorescence
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The^Bob: Absorbance and emission vibronic structure in fluorite.
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The^Bob: Hyalite absorbance and fluorescence
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The^Bob: Fluorite-rod, yellow region absorbance and fluorescence
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The^Bob: Two examples of red fluorescence in fluorite
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The^Bob: Agate teardrop transmission and fluorescence
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The^Bob: fluorescence and absorbance of Sumatran blue amber
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The^Bob: fuv-ir transmission of yellow fluorite
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The^Bob: Yellow fluorite transmission uv-vis
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The^Bob: Far UV - blue transmission of fluorites
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The^Bob: Disulphide fluorescence in Haüyne; Delta-k measurement
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The^Bob: Vibronic band spacing in the ozonide ion in fluorite
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The^Bob: Disulphide ion fluorescence in fluorite: Delta-k
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The^Bob: Ozone in a rock
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The^Bob: Fluorite yellow Hilton fluorescence
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The^Bob: Fluorite yellow Hilton transmission
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The^Bob: Haüyne transmission and fluorescence
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The^Bob: Yellow fluorite transmission
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The^Bob: Fluorescence and phosphorescence of Sumatran blue amber
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The^Bob: UV spectroscopy of Sumatran blue amber
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The^Bob: Transmission of thin sample of blue amber
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The^Bob: Sumatran blue amber fluorescence and phosphorescence