The shallow yellow hues are rich in variation. If we were to distinguish and name them by color, they could be called: iron blue, sky blue, chestnut, pig liver, dark liver, purple copper, crabapple red, cinnabar purple, water blue, agarwood, sunflower yellow, cold golden yellow, pear skin, incense ash, blue-gray, ink green, paulownia green, dark black, brown-black, cotton skin, lacquer black... and many other colors. Upon closer observation of these various clay colors, one can also see fine sandy particles, like silver sand dotted within. When reflected in sunlight, they appear like scattered pearls—or when coarse clay sand or steel sand is mixed into the clay, a fine texture (like good silk) covers the entire surface, with granular particles appearing and disappearing, making it even more striking. In terms of form, purple clay teapots are divided into two types: tall and short. According to tea principles, tall-form pots have slightly constricted mouths and lids (meaning gathered inward), making them suitable for brewing black tea. Since black tea undergoes fermentation during processing, brewing black tea in a tall pot brings out a richer and more concentrated fragrance. Short-form pots have slightly open mouths and lids. Green tea is not fermented during processing, so the chlorophyll remains intact. Brewing should not be too deep or prolonged, therefore brewing green tea in a short-form pot produces a fresh, clear infusion that better displays the excellent qualities of color, aroma, and taste. Beyond the characteristics mentioned above, what is even more important is the handcraft technique and workmanship quality of purple clay ware. Purple clay products have traditionally been classified into three categories based on the refinement of their craftsmanship: coarse ware, fine ware, and special craft pieces. Coarse ware refers to mass-market products aimed at the general public. Fine ware refers to craft ceramic products. Special craft products refer to pieces handmade by renowned artisans, possessing very high artistic value. Purple clay craft ceramics encompass numerous types of forms, described as "no two squares are alike, no two rounds are the same." The forms are dignified and simple, with proper contours, clear lines, and appropriate proportions. For example, a teapot's spout, handle, foot, lid, and knob each possess their own complete and beautiful form, while also complementing the pot body to create a harmonious and perfect whole, with practical functionality considered simultaneously. When the same variety comes from the hand of a renowned artisan, it possesses even greater artistic appeal—it is a craft art appreciation piece with practical value. The sources of traditional purple clay forms can be summarized as follows: 1. Imitating bronze vessel forms from the Three Dynasties, Zhou, Spring and Autumn, Warring States, and Qin periods: ding, zun, yi, and lei vessels. 2. Imitating ancient ceramic forms: painted pottery, lei (pronounced "lei"), vases, cups, bowls, as well as roof tiles, Han brick patterns from the Qin, Han, and Jin dynasties. 3. Imitating ancient object forms: Qin weights, jade objects, bells, drums, etc. 4. Imitating or transforming the shapes of melons, fruits, and flowers, decorated using relief and semi-round carving techniques, such as: lotus, sunflower, peach, persimmon, grape, pine, bamboo, plum, etc.