T-type asteroids are rare inner-belt asteroids of unknown composition with dark, featureless and moderately redspectra, and a moderate absorption feature shortwards of 0.85µm. No direct meteorite analog has been found to date. Thought to be anhydrous, they are considered to be related to P-types or D-types, or possibly a highly altered C-type. One example is 114 Kassandra.
A 'potentially hazardous' asteroid the size of a pyramid will skim past Earth tomorrow, NASA has revealed ... It'll mark the closest the asteroid has got to our planet in more than than 100 years ... Types of space rock.