6802.21 - Marble, travertine and alabaster:

This HTS category, 6802.21, specifically addresses worked monumental or building stone that is marble, travertine, and alabaster, which has been simply cut or sawn to achieve a flat or even surface. This designation encompasses natural stone materials that, while processed, retain their fundamental form and have not undergone further intricate shaping or ornamentation beyond basic dimensional processing for construction or decorative purposes.

Distinguishing this category from its siblings, 6802.23.00.00 covers granite, a distinct igneous rock with its own unique characteristics and classifications. Similarly, 6802.29 encompasses "other stone" that does not fall under the marble, travertine, alabaster, or granite classifications. Therefore, 6802.21 is specifically reserved for the aforementioned materials when presented in their simply cut or sawn state.

Within 6802.21, further subdivisions exist to refine the classification. The subcategory 6802.21.10.00 is dedicated to travertine, a specific type of limestone formed by mineral springs. The remaining products falling under this heading, which are marble or alabaster simply cut or sawn with a flat or even surface, are classified under 6802.21.50.00 as "Other." This hierarchical structure allows for precise identification based on the specific natural stone material and its primary processing method.