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Table 4 XRD results for the black materials on the surface of the construction materials used in the Khmer temples

From: Precipitation of manganese oxides on the surface of construction materials in the Khmer temples, Cambodia

Temple Sample no. Base material Quartz Plagioclase Goethite Kaolinite Birnessite Todorokite Brushite
Bayon 3401 Sandstone     
Prasat Neang Khmau 3402 Laterite       
Prasat Chrap 3403 Laterite       
Prasat Banteay Pir Chan 3404 Laterite        
East Mebon 3405 Laterite       
Pre Rup 3406 Laterite      
Pre Rup 3407 Sandstone     
Ta Keo 3408 Laterite      
Phnom Krom 3409 Laterite      
Wat Athvea 3410 Laterite      
Sambor Prei Kuk: Tower S1 3411 Bricks       
Sambor Prei Kuk: Tower S1 3412 Sandstone   
Sambor Prei Kuk: Tower C1 3413 Bricks       
Sambor Prei Kuk: Tower C1 3414 Sandstone