Mineralogy - PART 1 Flashcards
The most abundant element of the earth’s crust.
- Silicon
- Oxygen
- Iron
- Magnesium
- Aluminum
- Sodium
- None of the above
Oxygen
Magma A have changed in composition as the country rock collapsed and mixed into the system while migrating towards the earth’s surface.
This process is called ____________
- Magmatic assimilation
- Magmatic Immicibility
- Magma migration
- Magmatic Immicibility
- Fractional crystallization
- None of the above
Magmatic assimilation
Which of the following is not included in the information that can be acquired from phase diagrams?
- State of phases
- Phases
- Relative quantities of phases
- Possible phase transformation due to changes in parameters
- All of the above
- None of the above
None of the above
The most common constituent of ultrabasic rocks.
- Amphibole
- Hematite
- Corundum
- Chromite
- None of the above
Chromite
Most common scale of mineral hardness was developed by ______
- Elrich Mohs
- Charlson Mohs
- Heinrich Mohs
- Friedrich Mohs
- None of the above
Friedrich Mohs
The most abundant mineral on the earth’s mantle.
- Quartz
- Amphiboles
- Peruvskite
- Feldspar
- Mica
- None of the above
Peruvskite
Magma B, C, and D were formed due to the separation of initially formed crystals within magma A.
This process is called _______________
- Assimilation
- Fractional crystallization
- Magma migration
- Equilibrium crystallization
- Magmatic Immicibility
- None of the above
Fractional crystallization
What are the common rock-forming minerals?
Quartz Feldspar Micas Foids / Pyrite Pyroxene Amphibole Olivine
What is a mineral?
Naturally occuring
Inorganically formed
With defined crystal structure
Must be solid
With definite chemical composition
Crystal system of Dolomite:
Rhombohedral
Crystal system of Calcite:
Trigonal
Crystal system of Halite:
Hexoctahedral
Crystal system of Rhodonite:
Tricilinic
Crystal system of Zircon:
Tetragonal
Crystal system of Apatite:
Hexagonal
