Tectosilicates

Question 1

Tectosilicates Formula

Answer 1

SiO2

Question 2

Tectosilicates also known as

Answer 2

Framework Silicates

Question 3

Tectosilicate minerals are known to be

Answer 3

Highly durable

Question 4

They make up about what % of the earth’s crust

Answer 4

75%

Question 5

Subgroups of Tectosilicates

Answer 5

Silica Group
Plagioclase Feldspar/Alkali
Feldspathoids
Scapolite
Zeolites

Question 6

It is the most abundant minerals in the Earth’s crust, making up about 90% of it’s volume.

Answer 6

Silica

Question 7

Alpha Quartz

Answer 7

Amethyst
Rose Quartz
Smokey Quartz

Question 8

Chemical Formula of Quartz

Answer 8

SiO2

Question 9

One of the most abundant minerals on Earth, comprising about 12% of the Earth’s crust by volume.

Answer 9

Quartz

Question 10

Varieties of Quartz

Answer 10

Amethyst
Rose Quartz
Smokey Quartz
Milky Quartz
Pure Quartz
Citrine
Blue Quartz
Aventurine
Morion

Question 11

Why alpha quartz are called true quartz?

Answer 11

Quartz being the final mineral that forms in the Bowen’s series, becoming resistant to weathering making alpha quartz the purest form of quartz.

Question 12

Varieties of Chalcedony

Answer 12

Chert
Flint
Carnelian
Jasper
Blue Agate
Sardonyx
Fire Agata
Chrysoprase
Heliotrope
Damsonite
Iris Agate
Onyx

Question 13

Rose Quartz color is caused by?

Answer 13

Dumortierite

Question 14

Smokey Quartz color is caused by?

Answer 14

Presence of aluminum (irradiated)

Question 15

Milky Quartz color is caused by?

Answer 15

Fluid inclusions

Question 16

a.k.a rock crystal

Answer 16

Pure Quartz

Question 17

Citrine color is caused by?

Answer 17

Aluminum/Iron

Question 18

Blue quartz color is caused by?

Answer 18

Inclusions of fibrous minerals such as crocidolite and of tourmaline.

Question 19

Aventurine color is caused by?

Answer 19

Fuschite

Question 20

Morion color caused by?

Answer 20

Exposure to natural radiation (black)

Question 21

Carnelian reddish variety cause

Answer 21

Iron Oxide Impurities

Question 22

Jasper inclusions

Answer 22

Hematite and iron hydroxides

Question 23

Blue Agate color cause

Answer 23

Iron, Manganese or copper

Question 24

Sardonyx Color and cause

Answer 24

Reddish-brown and presence of iron oixde

Question 25

Fire Agate inclusions

Answer 25

Geothite or limonite

Question 26

Chrysoprase color and cause

Answer 26

Apple-green and presence of Ni-bearing silicates

Question 27

Heliotrope a.k.a and color and cause

Answer 27

Bloodstone, Greenish-blue, inclusions of chlorite and amphiboles

Question 28

Damsonite color and cause

Answer 28

Light violet, manganese

Question 29

Iris Agate cause

Answer 29

Presence of a diffraction grating structure

Question 30

Onyx color and cause

Answer 30

Black and white, caused by alternating silica minerals

Question 31

Play of colors which is caused by defraction of white light

Answer 31

Opalescence

Question 32

The most abundant mineral group on Earth and make up of nearly 60% of Earth's crust

Answer 32

Feldspar

Question 33

one of the key applications of feldspar

Answer 33

Indicator Mineral

Question 34

Potassium feldspar group consists of three main minerals:

Answer 34

Orthoclase, microline and sanidine

Question 35

Orthoclase, microline and sanidine crystal systems

Answer 35

Orthoclase - Monoclinic Microline - Triclinic Sanidine - Monoclinic

Question 36

Most well known gemstone of the feldspar group

Answer 36

Moonstone

Question 37

Moonstone is known for it's?

Answer 37

Glowing color sheen that resembles the moonlight.

Question 38

A deep green or greenish-blue variety of microline also called

Answer 38

Amazon stone (Amazonite)

Question 39

White or colorless, transparent variety of sanidine

Answer 39

Adularia

Question 40

Most common rock-forming minerals found mostly in igneous and metamorphic rocks

Answer 40

Plagioclase Feldspar Gtoup

Question 41

Minerals in the Plagioclase are a homogenous mixture of?

Answer 41

Albite and Anorthite

Question 42

Refers to the series of minerals because their similarities that make them hard to tell apart.

Answer 42

Plagioclase

Question 43

ABLAOA Minerals (% Calcium, % Sodium)

Answer 43

Anorthite 100 - 0 Bytownite 80 - 20 Labradorite 60 - 40 Andesine 40 - 60 Oligoclase 20 - 80 Albite 0 - 100

Question 44

Isomorphous series between?

Answer 44

Albite and Anorthite

Question 45

An effect that causes a mineral to display dark, metallic-like color shimmers

Answer 45

Labradorescence

Question 46

Transparent labradorite with copper inclusions

Answer 46

Sunstone

Question 47

An optical effect when a mineral displays a milky, bluish luster across a mineral's surface

Answer 47

Adularescence

Question 48

A term for Moonstone

Answer 48

Adularia

Question 49

A variety of Albite

Answer 49

Peristerite

Question 50

Family of minerals rich in Na, K, and Ca aluminosilicates

Answer 50

Feldspathoid Group

Question 51

Feldspathoid Group are restricted to

Answer 51

Quartz-free rocks

Question 52

Minerals under Feldspathoid Group

Answer 52

Nepheline Leucite Cancrinite

Question 53

Cancrinite Group Minerals

Answer 53

Franzinite Liottite MIcrosommite Afghanite

Question 54

Pink or purple variety of Sodalite and cause

Answer 54

Hackmanite, sulfur giving tenebrescence

Question 55

Reversible photochromism, when a mineral changes color in direct sunlight and turns back into its original color in the dark.

Answer 55

Tenebrescence

Question 56

Sodalite Group Minerals

Answer 56

Lazurite Hauyne Nosean

Question 57

Blue variety of Sodalite

Answer 57

Lazurite

Question 58

Hauyne

Answer 58

Blue color, sulfate bearing

Question 59

Nosean Color

Answer 59

Colorless / White

Question 60

A group of minerals related by complex solution substitutions.

Answer 60

Scapolite

Question 61

Scapolite minerals are easily attacked by?

Answer 61

Weathering

Question 62

Minerals under Scapolite

Answer 62

Marialite Meinoite

Question 63

Aluminosilicate minerals with a three-dimensional framework structure

Answer 63

Zeolites

Question 64

In Ancient times, zeolites was used as natural minerals for purposes such as

Answer 64

Water purification

Question 65

Zeolites were also used as a?

Answer 65

Catalyst (oil refining)

Question 66

Minerals Under Zeolite

Answer 66

Analcime Natrolite Laumontite Stilbite

Question 67

Consists of hydrated sodium aluminum silicate in cubic crystalline form.

Answer 67

Analcime

Question 68

Ferruginous variety of analcime

Answer 68

Cluthalite

Question 69

White and powdery crystal

Answer 69

Laumontite

Question 70

Laumontite Variety

Answer 70

Leonhardite

Question 71

Alias for Stilbite

Answer 71

Desmine