Mineral necessarily constant for all sides, which is a function of its structure; crystallographic weakness renders some directions softer than others. An example of this property exists in kyanite, which has a Mohs hardness of 5½ parallel to [001] but 7 parallel to [100]. The most common scale of measurement is the ordinal Mohs hardness scale. Defined by ten indicators, a mineral with a higher index scratches those below it. The scale ranges from talc, a phyllosilicate, to diamond, a carbon polymorph that is the hardest natural material. The scale is provided below: Lustre indicates how light reflects from the mineral's
Mohs (automobile) Mohs (automobile) Mohs was an automobile make built by the Mohs Seaplane Corporation of Madison, Wisconsin (United States). Bruce Mohs, the company founder, built limited-production automobiles on chassis built to custom specifications by the International Harvester Company. Automobiles by Mohs were built between 1967 and 1979. Mohs produced two models. Bruce Baldwin Mohs died February 1, 2015. The Ostentatienne Opera Sedan was offered at a F.O.B. price of $19,600 (1967), had a weight of 5,740 lb (2,600 kg), and sat on a 119 in (3.02 m) wheelbase. Prices have also been quoted at $25,600. Tires for the vehicle were nitrogen