Silicate mineral

Question 1

All silicate minerals share a common building block called ___________.

Answer 1

Silica tetrahedron

Question 2

The abundance of negative charge causes the silica tetrahedron to have an affinity for atoms with positive charges. To solve this problem, it needs to ________. The mineral _____ formed this way.

Answer 2

add more cations; olivine

Question 3

The second way for the silica tetrahedra to balance their charges is to _________. The mineral ____ formed this way.

Answer 3

link to one another; quartz

Question 4

Minerals with isolated tetrahedra

Answer 4

Nesosilicates

Question 5

Example of nesosilicate

Answer 5

olivine, forsterite, and fayalite

Question 6

Silica tetrahedron connected to one another forming a single chain arrangement.

Answer 6

Single-chain silicates or inosilicates

Question 7

Example of inosilicates (single chain)

Answer 7

pyroxene (augite), orthopyroxene, wollastonite, and clinopyroxene

Question 8

The atomic structure is defined by pairs of parallel silica tetrahedra chains, wherein every other tetrahedron shares an oxygen

Answer 8

Double chain silicate

Question 9

Example of double chain silicate

Answer 9

Amphiboles

Question 10

Structures that have two silicate tetrahedrons (each consisting of a central silicon atom surrounded by four oxygen atoms at the corners of a tetrahedron) linked together.

Answer 10

Sorosilicate

Question 11

Example of sorosilicate

Answer 11

Epidote and zoisite

Question 12

Silicates containing rings of linked SiO4 tetrahedra. The Si: O. ratio is 1:3

Answer 12

Cyclosilicate

Question 13

Example of cyclosilicate

Answer 13

Tourmaline

Question 14

Each tetrahedron chares three corner oxygen atoms with its neighbors.

Answer 14

Sheet Silicate or Phyllosilicates

Question 15

Example of phyllosilicate

Answer 15

Biotite (mica group), clay minerals, serpentine, chlorite

Question 16

Oxygen atom in every tetrahedron is shared with another, forming a three-dimensional framework.

Answer 16

Framework silicate and tectosilicates

Question 17

Example of tectosilicates

Answer 17

Feldspars, quartz, zeolite

Question 18

Scientist who developed a model that characterized the order in which silicate minerals forms as magma cool

Answer 18

Norman L. Bowen

Question 19

Model explains the formation of different types of plagioclase feldspar.

Answer 19

Continuous reaction series

Question 20

Enumerate the continuous series

Answer 20

albite - oligoclase - andesine - labradorite -bytownite - anorthite

Question 21

Model describes the crystallization of distinct types of minerals as a body of magma cools.

Answer 21

Discontinuous reaction series

Question 22

Enumerate the discontinuous series

Answer 22

olivine - pyroxene - amphibole - biotite mica

Question 23

Minerals that might crystallize from a cooling body of magma once it reached a temperature of around 600 degrees, but only if that magma is rich in silica

Answer 23

potassium feldspar, muscovite, mica, and quartz

Question 24

T or F. Minerals with higher in BRS have higher crystallization temperatures than those that are lower in BRS.

Answer 24

T

Question 25

T or F. Minerals higher in the discontinuous series of BRS have lighter in color than those are lower in BRS.

Answer 25

F. Darker

Question 26

T or F. Minerals that are lower in the discontinuous series of BRS have greater amounts of iron and magnesium.

Answer 26

F. Higher

Question 27

T or F. Minerals that are higher in the discontinuous series of BRS have greater amounts of silica.

Answer 27

F. Lower

Question 28

Minerals that are in lower discontinuous series of BRS are more resistant to weathering those that are higher in the series.

Answer 28

T