putty powder

Zinc oxide powder (also called putty powder) is used for this by most marble dealers.

Tin dioxide for this use is sometimes called as "putty powder" or "jeweler's putty".

A. Marble dealers use a tin-oxide polishing compound, often called putty powder, on marble.

The scratches must be polished out with a very fine abrasive such rottenstone and oil, or with a special putty powder available from marble dealers.

There was a can of finest emery flour behind the wooden wheel, and a small jar of putty powder behind the felt wheel.

Polishing with a fine abrasive is the only solution, using something like jeweler's rouge or a zinc oxide polishing compound (referred to as putty powder) used by marble dealers.

This failing, the usual method is first to apply a poultice of bleach and cleaning agents mixed with powdered chalk (whiting), then to polish with a special zinc oxide powder (usually called putty powder).