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Sample ID:
PK11620
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Origin:
Natural mineral; Provenance: Otranto, Italy
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Chemical Information:
Natural brown earth from Italy
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Sample Type:
Reference material
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Description:
Powder sample (0-120 µ)
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History of use:
Since antiquity
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Sample Source:
Kremer Pigments
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Alternative names:
C.I. Pigment Brown 7, PBr7
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Material Class:
Earth pigments
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Acquisition Conditions:
Excitation source: 785 nm
Laser spot size: 170 µm Resolution: 7 cm-1 Laser power: 1 mW Acquisition time: 250 ms |
