minerals
What is the composition of sulfur?
S
What are the characteristics of obsidian?
Lighter color , lower density, Felsic
what is the texture of Bituminous coal?
Bioclastic
What is the type of metamorphism of Anthracite coal?
Regional
What is the uses of graphite
pencil lead, lubricants
what is pegmatitie metal composition?
potassium feldspar and quarts
what is the composition of Rock salt
Halite
what is the composition of Metaconglomerate?
Various minerals
what are the common colors of Hematitie?
metallic silver or earthy red
is diorite intrusive or extrusive ?
intrusive
what is the rain size of sandstone?
Sand (0.006 to 0.2 cm)
what is the type of metamorphism of Hornfels?
Contact (heat)
what is talc's distinguishing characteristics
greasy feel
Does Gabbro have high or low density
High
what is the texture of Dolostone?
Crystalline
Is Phyllite nonfoilated or foilated
foilated
Name the four metallic luster minerals
Graphite, galena, magnetite,and pyrite
what is the texture of basalt?
fine
what is the composition of Rock gypsum?
Gypsum
What is the grain size of Gneiss?
Medium to coarse