Mineralogy
41Endmember (mineralogy) — An endmember in mineralogy is a mineral that is at the extreme end of a mineral series in terms of purity. Minerals often can be described as solid solutions with varying compositions of some chemical elements, rather than as substances with an… …
42Streak (mineralogy) — The streak (also called powder color) of a mineral is the color of the powder produced when it is dragged across an unweathered surface. Unlike the apparent color of a mineral, which for most minerals can vary considerably, the trail of finely… …
43Magnetic mineralogy — is the study of the magnetic properties of minerals. The contribution of a mineral to the total magnetism of a rock depends strongly on the type of magnetic order or disorder. Magnetically disordered minerals (diamagnets and paramagnets)… …
44soil mineralogy — noun The sub discipline of soil science that studies the solid inorganic phases controlling physicochemical processes in soils and sediments …
45Father of American Mineralogy — Parker Cleaveland …
46Father of Mineralogy — Agricola …
47Mineralogies — Mineralogy Min er*al o*gy, n.; pl. {Mineralogies}. [Mineral + logy: cf. F. min[ e]ralogie.] [1913 Webster] 1. The science which treats of minerals, and teaches how to describe, distinguish, and classify them. [1913 Webster] 2. A treatise or book… …
48Knoop hardness — ▪ mineralogy a measure of the hardness of a material, calculated by measuring the indentation produced by a diamond tip that is pressed onto the surface of a sample. The test was devised in 1939 by F. Knoop and colleagues at the National… …
49Vickers hardness — ▪ mineralogy a measure of the hardness of a material, calculated from the size of an impression produced under load by a pyramid shaped diamond indenter. Devised in the 1920s by engineers at Vickers, Ltd., in the United Kingdom, the diamond …
50Минералогия — [mineralogy] наука о природных химических соединениях минералах, особенностях и закономерностях физического строения (структуры), а также об условиях образования и изменения в природе. Главная задача минералогии создание научных основ для поисков …
