7105 - Dust and powder of natural or synthetic precious or semi- precious stones:

This HTS category, 7105, encompasses dust and powder derived from natural or synthetic precious or semi-precious stones. This includes finely ground materials of gemstones, regardless of whether they are naturally occurring or man-made. Such materials may be used in various industrial applications, such as abrasives, polishing compounds, or as components in the manufacturing of other goods.

Distinguishing this category from its siblings within the HTS database is crucial for accurate classification. While other chapters and headings at the root level cover a vast array of goods, from live animals to manufactured products, Chapter 71 specifically deals with precious and semi-precious stones and related materials. Within Chapter 71, Heading 7105 focuses solely on the pulverized forms of these valuable materials, differentiating it from headings that cover cut gemstones, pearls, or finished articles of precious metal.

The subcategories within heading 7105 provide further granularity. 7105.10.00 specifically addresses dust and powder of diamonds, a distinct classification due to the unique properties and value of diamonds. The residual category, 7105.90.00.00, then covers all other dust and powder of natural or synthetic precious or semi-precious stones not specifically classified under diamonds. This hierarchical structure ensures precise tariff application based on the specific type of gemstone material in its powdered form.