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Line 158: − + − + − :<sup>b</sup><sub>Samples of oil-based mud and other petroleum products used around the wellsite should be routinely sampled and examined under UV light to avoid potential confusion with hydrocarbon shows from the rocks.
→Fluorescence
! Mineral or Material || Fluorescence Color
! Mineral or Material || Fluorescence Color
|-
|-
| colspan = 2 align = center | ''' Minerals'''<sup>a</sup>
| colspan = 2 align = center | ''' Minerals'''<ref name=pt03r17 />
|-
|-
| Dolomite, magnesian limestones || Yellow, yellowish brown to dark brown
| Dolomite, magnesian limestones || Yellow, yellowish brown to dark brown
| Pipe dope || Bright blue
| Pipe dope || Bright blue
|-
|-
| Oil-based mud<sup>b</sup> || Varies
| Oil-based mud<sup>a</sup> || Varies
|}
|}
:<sup>a</sup><sub>Modified from Exploration Logging, Inc.</Sub>
:<sup>a</sup><sub>Samples of oil-based mud and other petroleum products used around the wellsite should be routinely sampled and examined under UV light to avoid potential confusion with hydrocarbon shows from the rocks.
===Cut fluorescence===
===Cut fluorescence===