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                                                Hair, negroid
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                                                Negroid hair: 
* Shaft diameter: moderate to fine with considerable variation  
*Pigment granules: densely distributed (hair shaft may be opaque) and arranged in prominent clumps  
*Shaft: prominent twist and curl  
*Cross-sectional shape: flattened  
 
Image courtesy of Microscopy of Hair Part 1: A Practical Guide and Manual for Human Hairs; Forensic Science Communications. 
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