No. Tuff is an igneous rock. it contains a number of minerals as well as volcanic ash and pumice, which are forms of volcaninc glass.
TUff can be used for construction. it dependes what tuff it is. there are many out there i.e. volcanic ash\ go on wikipedia.org and seach tuff
Tuff can be found in a number of locations in the U.S. including the areas in and around Yellowstone National Park and in large portions of the Southwest including parts of California, Arizona, and New Mexico. There are also tuff depsoties in the Cascades.
Tough is the same as rough; tuff means cool (ex:a tuff looking Mustang or a tuff record)
Greasers are know for they're tuff greasy hair (Tough and tuff are two different words.Tough is the same as rough;tuff means cool,sharp-like a tuff-lookingMustang or tuff record)
"Tuff" in Spanish is "toba"
All tuff is extrusive.
Tuff Enuff was created in 1985.
Tuff Gong was created in 1970.
Tuff Crew was created in 1985.
Tuff Shed was created in 1981.
Tuff Shed's population is 1,000.