4 facts
Unlike regular ice, dry ice is solid carbon dioxide that sublimates directly into a gas at room temperature, without melting into a liquid. This property makes it useful for refrigeration where water residue would be undesirable, such as shipping perishables or creating fog effects.
Diamonds have the highest thermal conductivity of any known material, meaning they rapidly draw heat away from your skin when touched. This quick heat transfer makes them feel noticeably cooler to the touch compared to other objects at the same ambient temperature, a property used in diamond testing.
Unlike many other materials, diamonds allow X-rays to pass through them almost unimpeded. This unique property is sometimes used by gemologists to distinguish real diamonds from imitations like cubic zirconia, which absorb X-rays, aiding in authentication.
Its molecules are arranged randomly like a liquid, but it lacks the crystalline structure of solids and flows extremely slowly over geological timescales. This unique state gives it properties distinct from both liquids and crystalline solids.