Is quartz a mineral?
Is quartz a mineral?
The_______regioniscenteredlargelyinthenorthofthecountry.A.A.petrol A: mineral B: telescope C: wire
The_______regioniscenteredlargelyinthenorthofthecountry.A.A.petrol A: mineral B: telescope C: wire
The isotropic mineral has no pleochroism, and there are no positive or negative relief.
The isotropic mineral has no pleochroism, and there are no positive or negative relief.
The appearance or quality of light reflected from the surface of a mineral is known as ( ).
The appearance or quality of light reflected from the surface of a mineral is known as ( ).
A．mineralB．refinedC．definedD．fresh A: mineral B: refined C: defined D: fresh
A．mineralB．refinedC．definedD．fresh A: mineral B: refined C: defined D: fresh
All mineral water is ‘natural’, coming straight from a natural spring.
All mineral water is ‘natural’, coming straight from a natural spring.
The section which is cross to optical axis of anisotropic mineral has no pleochroism and absorption.
The section which is cross to optical axis of anisotropic mineral has no pleochroism and absorption.
whichone is not trace mineral?() A: zinc B: copper C: magnesium D: iodin
whichone is not trace mineral?() A: zinc B: copper C: magnesium D: iodin
These areas rely on agriculture almost _____________, having few mineral resources and a minimum of industrial development.
These areas rely on agriculture almost _____________, having few mineral resources and a minimum of industrial development.
A collection of specimens that exhibit similar internal structure and chemical compositions are called mineral species
A collection of specimens that exhibit similar internal structure and chemical compositions are called mineral species