What we call in the blind the tactile sense is in reality more often the stereognostic sense.
Other senses tend to associate themselves with the chromatic sense, for example, the stereognostic and gustatory senses.
The stereognostic sense: Recognition of elementary forms, of rare objects, of coins.
stereognosis ster·e·og·no·sis (stěr'ē-ŏg-nō'sĭs, stēr'-)
The perception of the form of an object by means of touch.