6802.99.00.90 - Other

This category, HTS 6802.99.00.90, encompasses worked monumental or building stone, excluding slate, and articles thereof, which do not fall under heading 6801. It also includes mosaic cubes and similar articles made from natural stone, including slate. Artificially colored granules, chippings, and powder derived from natural stone, including slate, are also classified here. The "Other" designation within this subcategory signifies materials that are not specifically detailed in preceding subheadings related to worked stone or mosaic articles.

This classification distinguishes itself from its sibling category, "Quartzite," by encompassing a broader range of natural stones beyond quartzite. While quartzite is a specific type of metamorphic rock with distinct geological characteristics and working properties, HTS 6802.99.00.90 covers any other natural stone that has been worked for monumental or building purposes, or fashioned into mosaic cubes, granules, chippings, or powder, provided they are not otherwise classified. This includes a wide variety of stones such as granite, marble, sandstone, limestone, and serpentine, when they meet the criteria of being worked or processed for these applications and are not of slate.

As a leaf node within the HTS classification system, HTS 6802.99.00.90 has no further subcategories. Therefore, the focus for classification into this heading is on the material composition (natural stone other than slate, or artificially colored natural stone products) and its form or intended use (worked for monumental or building purposes, mosaic cubes, granules, chippings, or powder). Exclusions, such as slate goods or goods of heading 6801 (which typically refers to natural stone paving blocks, curb stones, and flagstones, roughly trimmed or merely cut, by sawing or otherwise), are crucial for accurate classification.