Friedrich Mohs harder. This became the basis of the hardness scale developed by Mohs. The hardest mineral, diamond was given a value of 10 and softer minerals such as talc were given the very low value of 1 (unity). Other minerals were given intermediate values, depending on their ability to scratch another mineral in the scale. Thus gypsum was given the value 2 because it will scratch talc crystals, and calcite the value 3 because it will scratch gypsum. Minerals are also now classified by chemical characteristics, but the physical properties are still useful in field examination. In 1812, Mohs became a
Mohs (automobile) SafariKar was introduced in 1972, and was no less exotic than the Ostentatienne. SafariKars were aluminum bodied automobiles, the exterior of which were upholstered in Naugahyde (vinyl) stretched over foam padding. Doors for the vehicle opened outward from the body on linear rods, again for side impact protection. The vehicle had a retractable hard top system. Options for the SafariKar included a television, four-wheel drive, two-way radio and "butane furnace." Only three were produced, probably all in 1972 since an early Mohs publicity photograph shows all three in various stages of assembly. "Production" of the Safari Kar was listed in