Geology Final Part 1

Silicate minerals are subdivided into six groups based on the way silica tetrahedra are?

arranged and bonded

Which of the following is a mineral?

ice, which is water in the solid state

When hematite is scraped its called a _______

streak

Minerals are all naturally occurring solid substances with a definable chemical composition

they must also posses a crystalline structure

The image below shoes a mineral specimen of mica how many shades of cleavage does it have?

1

Diamonds are found in what type of rock?

Kimberlite

What is solid state diffusion?

Movement of atoms through a solid to form a new mineral

Whats a common gemstone that results from biomineralization?

Pearls

When a solution becomes over saturated new solid particles are said to do what?

Precipitate

Most abundant rock forming mineral?

Silicate

A larger number can scratch a smaller number on the mohs hardness scale

True

Diamonds and other sorts of gems do not __________

basyt

In silicate minerals, the sio4 tetrahedron can be linked together

by sharing oxygen atoms

Crystals that exhibit well formed faces are referred to as

euhedral

It is ________ that diamonds are seven times as hard as quartz

false