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  2. Jewellery cleaning - Wikipedia

    en.wikipedia.org/wiki/Jewellery_cleaning

    Keeping your jewelry clean gives the gemstone(s) a good shiny appearance by removing dirt and grease (among others) from loosening them. Dirty jewelry may also cause skin irritation. [1] A professional cleaning may take anywhere from a few minutes to a few days depending on the circumstances.

  3. Lapping - Wikipedia

    en.wikipedia.org/wiki/Lapping

    The lap or lapping plate in this machine is 30 cm (12 in) in diameter, about the smallest size available commercially. At the other end of the size spectrum, machines with 2.4-to-3.0-metre-diameter (8 to 10 ft) plates are not uncommon, and systems with tables 9 m (30 ft) in diameter have been constructed.

  4. Knife sharpening - Wikipedia

    en.wikipedia.org/wiki/Knife_sharpening

    The rod guides the sharpening stone to maintain a consistent angle. The angle can be adjusted by moving the guide posts up or down. This sharpener uses a diamond dust coated stone to remove metal from the knife blade. Clamp-style sharpening tools use a clamp with several holes with predefined angles. The stone is mounted on a rod and is pulled ...

  5. Honing steel - Wikipedia

    en.wikipedia.org/wiki/Honing_steel

    A honing steel on a cutting board Common steel for use in households SEM images of the cross-section of a blade before (dull) and after (sharp) honing with a smooth rod [1]. A honing steel, sometimes referred to as a sharpening steel, whet steel, sharpening stick, sharpening rod, butcher's steel, and chef's steel, is a rod of steel, ceramic or diamond-coated steel used to restore sharpness to ...

  6. Stone rubbing - Wikipedia

    en.wikipedia.org/wiki/Stone_rubbing

    Stone rubbing at the Vietnam Veterans Memorial A National Park Service volunteer kneels and uses paper and a graphite stick to create a rubbing of a name from the Vietnam Veterans Memorial. Stone rubbing is the practice of creating an image of surface features of a stone on paper. The image records features such as natural textures, inscribed ...

  7. Lapidary - Wikipedia

    en.wikipedia.org/wiki/Lapidary

    Positioning rough stone in a holder, and holding the stone against the edge of a revolving saw or lapidary slitter impregnated with diamond dust to cut and slit stone. Removing cut stone and placing it in lapidary stick. A gemcutter then selects the shaping wheel and applies abrasive compound.

  8. Clip art - Wikipedia

    en.wikipedia.org/wiki/Clip_art

    Examples of computer clip art, from Openclipart. Clip art (also clipart, clip-art) is a type of graphic art. Pieces are pre-made images used to illustrate any medium. Today, clip art is used extensively and comes in many forms, both electronic and printed. However, most clip art today is created, distributed, and used in a digital form.

  9. Diamond cutting - Wikipedia

    en.wikipedia.org/wiki/Diamond_cutting

    Diamond manufacturers make a groove in the diamond with a laser or saw or another diamond, and then split the diamond by placing a steel blade in the groove and giving a gentle tap. [8] Cleavage can be along any of the four planes parallel to the faces of an octahedral diamond (i.e. perpendicular to body diagonals of the unit cell).