More information provided by NAU American Southwest Virtual Museum:
Kayenta Black-on-white is type of Tusayan White Ware with finely executed designs that was made primarily in the area between the Tsegi canyons and Hopi Mesas of northern Arizona.
Archaeological Culture: Ancestral Puebloan, Kayenta
Date Range: Kayenta Heartland: A.D. 1260-1330 (Christenson 1994), Flagstaff Region: A.D. 1250-1290 (per Christian Downum, Northern Arizona University).
Construction: By coiling.
Firing: In a reducing atmosphere.
Core Color: Usually light gray.
Carbon Streak: Rare.
Temper: Not very abundant fine quartz sand, frequently almost invisible; occasional small opaque angular fragments.
Surface Finish: Bowl interiors and jar exteriors, compacted, well-polished.
Surface Color: White to light pearl gray.
Forms: Jars predominate, colanders, and bowls.
Vessel Thickness: 2.2 to 8.6 mm (bowls).
Decoration:
- Paint: Black, occasionally brownish almost always rich and dense, never gritty.
- Pigments: Carbon, sometimes indicates of iron.
- Design: Execution is excellent, characterized by negative or mosquito bar effect, wide stripes frame rectangular or triangular panels in which occur narrow-line cross-hatching, usually diagonal, with solid elements as triangles, bars, stepped elements, occasionally opposed stepped elements in panels without hachure, rarely interlocking scrolls or finely barbed wide lines or stripes.
Comparisons: Hoyapi Black-on-white, surface color never dead white, often fairly dark pearl gray; decorated surfaces less well polished, scraping marks often conspicuous on unpainted surfaces; execution of design considerably less excellent; hatchure lines not always exactly parallel or evenly spaced; paint generally gritty and frequently purplish in spots.
Betatakin black-on-white, surface color never dead white, often dark pearl gray; painted surfaces only moderately polished, scraping marks often conspicuous on unpainted surfaces; execution of design considerably less excellent; open work rather than negative design.
Other Names: Black-on-white Ware, Kayenta Black-on-white Ware, Tokonabi (Kayenta) Ware, Sagi Black-on-white.
(Oppelt 2007:80-81): Kayenta Black-on-white (AD 1260-1300) This type is distributed in Tsegi Canyon southeast to the Hopi mesas in northern Arizona. The black paint is carbon and the temper is small amounts of very fine quartz sand. The surface color is white to light pearl gray. The three forms are jars, bowls, and colanders. The paint is rich and dark, never gritty. The designs are excellently done, characterized by a negative or "mosquito bar" effect. Wide stripes frame rectangular or triangular panels containing narrow line crosshatching, usually diagonal with solid triangles. Other units are stepped elements, occasionally opposing stepped elements in panels. Interlocking scrolls are rare. The Kayenta Black-on-white style of decoration may be a variation of Tusayan Black-on-white.