Sand stone is an example of

Kankar is impure lime stone of

Glazing is used to make earthenware

Solder is an alloy of

Purest form of coal & contains a majority of carbon, is produced from coal artificially

The crack starting from outside & moving towards pith is

The timber defect caused by the crushing of wood fibres resulting in breakage of continuity of fibres is called

Defect in painting due to poor adhesion

Pigment used in paints for corrosive resistance is ..