what charecteristics do geologist use to identify rocks?

Answer 1

Identification of a rock is a long process that involves two steps. First the tentative identification of the hand specimen in the field and then the final identification with help of various lab studies. In field the basic characteristics studied (often with the help of hand tools like a hand lens, streak plates, acid, magnet etc) are the mineral composition, texture (grain size, nature of grains and inter-granular relationship), structure (primary, secondary etc).
Petrographic study is the commonest laboratory study performed for the purpose of identification of rocks. A thin section is prepared (too thin to be transparent) and studied under sophisticated microscope to identify all the constituent minerals and also the texture of the rock. If necessary chemical analysis of the rock is also done. Generally these studies are considered sufficient to identify the rock. For further study, various modern techniques are also available, but not usually used for identification of rock.

Answer 2

Oh please. Granites style deep lower than floor with techniques from partial fractionation of somewhat igneous and metamorphic rocks yet as well sedimentary rocks (ie. all rocks). they have large crystals - it takes a lot a lot a lot longer than a human existence time for them to crystallise. they're of direct pastime to minerals geologists who favor to workout consultation the deformation history, history of fluid bypass, etc in a community to discover metals. they're not idiots. If there replaced into any fact to polonium halos they could be throughout it, it must be properly worth billions, no trillions of bucks. Polonium halos as warning signs of a youthful earth are entire bunk, ludicrously with the purpose to absolutely everyone who's established with the first element about geology. You of route do not. it truly isn't any excuse for mendacity (interior the pretense of a question) about Gods creation (Zechariah 13:3) in a talk board the position you comprehend virtually each and anybody who reads it gained't have a history in geology both.

Answer 3

I know one characteristic is color