Complex sentence: In its appearance and feel, molybdenum disulfide is similar to graphite and indeed it is widely used as a solid lubricant because of its low friction properties, sometimes to relatively high temperatures.
Split into simpler sentences: In its appearance and feel, molybdenum disulfide is similar to graphite. Indeed, like graphite, it is widely used as a solid lubricant because of its low friction properties, sometimes to relatively high temperatures.