The sample was cut from a fresh cedar roofing shake about 24 cm in length and 14 cm wide. The spectrum was collected of its unweathered surface. This sample was never exposed to the elements in an outdoor environment. IMAGE_OF_SAMPLE:
X Units
cm⁻¹
Y Units
Absorbance
Data Points
2,126
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Attribution
USGS Spectral Library Version 7, U.S. Geological Survey