An index mineral is used in geology to determine the degree of metamorphism a rock has experienced.
calcite
forms only in a sedimentary rock
color, hardness, chemical composition, system of crystallization, refractive index, luster, magnetic properties, radioactivity, fracture characteristics, etc.
body mass index
is a mineral
Mineral Wells Index was created on 1900-05-05.
An index mineral is used in geology to determine the degree of metamorphism a rock has experienced.
calcite
forms only in a sedimentary rock
kyanite and sillimanite
forms only in a sedimentary rock
Sillimanite is an index mineral for high temperature and variable pressure metamorphism.
index mineral
Connie Manson has written: 'Planning for housing in Wyoming' -- subject(s): Housing policy, Bibliography 'Index to geologic and geophysical mapping of Washington, 1899-1983' -- subject(s): Maps, Bibliography, Geology, Geophysics, Catalogs 'Index to geologic and geophysical mapping of Washington' -- subject(s): Maps, Catalogs, Geology 'Bibliography and index of the geology and mineral resources of Washington, 1986-1990' -- subject(s): Mines and mineral resources, Geology, Bibliography, Indexes 'Digital bibliography of the geology and mineral resources of Washington State' -- subject(s): Bibliography, Mines and mineral resources, Geology 'Preliminary bibliography and index of the geology and mineral resources of Washington, 1986-1989' -- subject(s): Mines and mineral resources, Geology, Bibliography, Indexes 'Bibliography and index of the geology and mineral resources of Washington, 1993' -- subject(s): Bibliography, Mines and mineral resources, Geology
Use the definition of "index of refraction". In this case, you simply need to divide the speed of light in a vacuum by the index of refraction.
The T-score is related to the Stiffness Index, because the Index is used to determine the T-score. This is an expression of structure, strength, and density.
No, kyanite is an indicator of high pressure metamorphism.