Diamond them with diamonds. Much more recently (tens to hundreds of million years ago), they were carried to the surface in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites. Synthetic diamonds can be grown from high-purity carbon under high pressures and temperatures or from hydrocarbon gas by chemical vapor deposition (CVD). Imitation diamonds can also be made out of materials such as cubic zirconia and silicon carbide. Natural, synthetic and imitation diamonds are most commonly distinguished using optical techniques or thermal conductivity measurements. Diamond is a solid form of pure carbon with its atoms arranged in a
What Time Is Love? TVT label, including a live version taken from "The "What Time is Love?" Story". The KLF's "Pure Trance" series was originally envisaged as comprising five "Original" 12" singles and five "Remix" 12"s. The "Pure Trance Remix" single of "What Time Is Love?" was released on 24 July 1989. KLF 004T was re-released in the UK on 15 July 1991, during the peak of The KLF's chart success, along with both "Pure Trance" mixes of "3 a.m. Eternal". Key "What Time Is Love? (Live from Trancentral)" was released on 30 July 1990, and the single of remixes "(Remodelled & Remixed)" followed