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Buccheroid Impasto fabrics

Name: Buccheroid Impasto 1 Code: BD1
Distinguishing features: Colour and burnish
Colour: Black surface, orange - dark red core Texture: Smooth Strength: Low
Hardness: Medium low Resistance: Medium Fracture: Finely irregular
Manufacture: Wheel Firing temperature: Low Firing atmosphere: Mixed
Surface treatment: Burnished
Clay matrix: Medium well elutriated
Inclusions:
Type Size mm. Colour Mineral % Shape Sorting Note
Crystal <0.5 Yellowish Transparent Quartz 5% Angular Poor  
Particles <0.25 White Lime 1% Angular Poor  
Grit <0.25 Black ? 1% Sub-angular Poor  
Grit <1 Red ? 1% Rounded Poor  
Notes: Finely burnished surface
Name: Buccheroid Impasto 2 Code: BD2
Distinguishing features: Colour and burnish
Colour: Black-grey surface, greenish brown core Texture: Slightly rough Strength: Low
Hardness: Low Resistance: Medium Fracture: Finely irregular
Manufacture: Wheel Firing temperature: Low Firing atmosphere: Mixed
Surface treatment: Burnished
Clay matrix: Medium well elutriated
Inclusions:
Type Size mm. Colour Mineral % Shape Sorting Note
Crystal <0.25 off-white-yellow transparent Quartz 15% Angular Poor  
Platelets <0.25 Silvery Mica 2% Platelet Poor  
Notes: Surface prone to spalling
Name: Buccheroid Impasto 3 Code: BD3
Distinguishing features: Colour and burnish
Colour: Black Texture: Smooth Strength: Low
Hardness: Medium low Resistance: Low Fracture: Finely irregular, laminar
Manufacture: Wheel Firing temperature: Low Firing atmosphere: Reducing
Surface treatment: Burnished
Clay matrix: Well elutriated
Inclusions:
Type Size mm. Colour Mineral % Shape Sorting Note
Crystal <1 Dark brown transparent ? 5% Sub-round Poor  
Crystal <1 Transparent Quartz 1% Angular Poor  
Notes:
Name: Buccheroid Impasto 4 Code: BD4
Distinguishing features: Colour and burnish
Colour: Brown-greyish green 10YR 4/2-7.5YR 4/2 Texture: Slightly rough Strength: Low
Hardness: Medium Resistance: Medium Fracture: Finely irregular
Manufacture: Wheel Firing temperature: Low Firing atmosphere: Mixed
Surface treatment: Burnished
Clay matrix: Well elutriated
Inclusions:
Type Size mm. Colour Mineral % Shape Sorting Note
Crystals <1 Transparent Quartz 5% Angular Poor  
Notes:
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Last updated: Fri Nov 13 1998