All about Silicates!

Question 1

Nesosilicates: The Mg component of Olivine Series

Answer 1

Fosterite

Mg2SiO4

Question 2

Nesosilicates:Both Mg-Fe component of olivine series.

Answer 2

Chrysolite

(Mg,Fe)2SiO4

Question 3

Nesosilicates: The Garnet group is divided into two. The Al2 and the Ca3. What are those?

Answer 3

Al2 - Pyralspites

Ca3- Ugrandites

Question 4

Nesosilicates: The oldest mineral (4.4 Ga)

Answer 4

Zircon

Question 5

Nesosilicates: The Fe component of Olivine series

Answer 5

Fayalite

Fe2SiO4

Question 6

Nesosilicates: A mineral in a Zircon group that contains traces amount of radioactive element

Answer 6

Cyrtolite

Question 7

Nesosilicates: A variety of colorless, pale grey, pale yellow Zircon

Answer 7

Jargon

Question 8

Nesosilicates: Extraterrestrial form of Olivine

Answer 8

Olivnoid

Question 9

Nesosilicates: Transparent green variety of Olivine

Answer 9

Peridot

Question 10

Nesolicates: The Garnet Group

Pyralspites’ Mg component with color of red to deep red

Answer 10

Pyrope

Mg3Al2(SiO4)3

Question 11

Nesosilicates: The Garnet group

Pyralspites’ Fe component with color of brown to red

Answer 11

Almandine

Fe3Al2(SiO4)3

Question 12

Nesosilicates: The Garnet Group

Pyralspites’ Mn component with color of orange and brown - red.

Answer 12

Sppesartine

Mn3Al2(SiO4)3

Question 13

Nesosilicates: The Garnet Group

Ugrandites’s Cr specimen that exhibits green color

Answer 13

Uvarovite
Ca3Cr2(SiO4)3

Question 14

Nesosilicates: The Garnet Group

Ugrandites’ Al species that exhibits brown and orange color

Answer 14

Grossular

Question 15

Nesosilicates: The Garnet Group

Ugrandites’ Fe species that exhibits Brown and brown red color

Answer 15

Andradite

Question 16

Sorosilicates: The Epidote Group
Epidote group includes all monoclinic species like Epidote, Clinozoisite, Allanite, Piemontite and Zoisite. Which among these minerals is the only orthorhombic?

Answer 16

Zoisite

Question 17

Sorosilicates: Zoisite’s pink variety

Answer 17

Thulite

Question 18

Sorosilicates: The Epidote Group

Zoisite’s purple-gem variety

Answer 18

Tanzanite

Question 19

Sorosilicates: The Epidote Group

Epidote’s specie that is the source of REE particularly, Ce.

Answer 19

Allanite

Question 20

Sorosilicates: The Mellilite Group

Mellilite group has two chemical species that has a chemical formula of Ca2MgSi2O7. What are these minerals?

Answer 20

Gehlenite & Akermite

Question 21

Cyclosilicates: One common example of ring silicates is the mineral Beryl (Be3Al2(SiO3)6 ). What is the blue variety of Beryl?

Answer 21

Aquamarine

Question 22

Cyclosilicates: Beryl’s yellow varieties

Answer 22

Heliodor and Golden Beryl

Question 23

Cyclosilcates: Beryl’s colorless variety

Answer 23

Goeshenite

Question 24

Cyclosilicates: Beryl’s red varieties

Answer 24

Red beryl and Bixbite

Question 25

Cyclosilicates: Beryl's green variety

Answer 25

Emerald

Question 26

Cyclosilicates: A mineral discovered by Cordier with a chemical formula of (Mg,Fe)2Al4Si5018.

Answer 26

Cordierite

Question 27

Cyclosilicates: Tourmaline's varieties are differentiated through colors. Indigulite (blue) is one among the other multicolor variety, purple, green and pink. What is the specific grouping of these colors?

Answer 27

Elbaite

Question 28

Cyclosilicates: A copper sulfide mineral deposit, usually forming in desert regions.

Answer 28

Dioptase | CuSiO2(OH2)

Question 29

Cyclosilicates: A mineral that is also known as Lavulite, purple in color causes by Mn.

Answer 29

Sugilite

Question 30

Cyclosilicates: Minor ore for Ba and Ti.

Answer 30

Benitoite | BaTiSi309

Question 31

Inosilicates: Basis of division of pyroxenes.

Answer 31

This group is the basis for the pyroxene group of minerals, like the orthopyroxenes (Mg,Fe) SiO3 or the clinopyroxenes Ca(Mg,Fe)Si2O6.

Question 32

Inosilicates (single chain): The Mg species of orthopyroxene series.

Answer 32

Enstatite | Mg2Si2O6

Question 33

Inosilicates (single chain): The Fe species of orthopyroxene series.

Answer 33

Enstatite | Fe2Si2O6

Question 34

Inosilicates (inosilicates): on the series of clinopyroxenes Ca component, particularly, Diopside, Hedenbergite and Essenite which among these is a Mg species?

Answer 34

Diopside | CaMgSi2O6

Question 35

Inosilicates (inosilicates): on the series of clinopyroxenes Ca component, particularly, Diopside, Hedenbergite and Essenite which among these is a Fe species?

Answer 35

Hedenbergite | CaFe2+Si2O6

Question 36

Inosilicates (inosilicates): on the series of clinopyroxenes Ca component, particularly, Diopside, Hedenbergite and Essenite which among these is a Fe 3+species?

Answer 36

Essenite | CaFe3+[AlSiO6]

Question 37

Inosilicates (single chain): Clinopyroxenes' important ore of Li

Answer 37

Spodumene | LiAl(SiO3)2

Question 38

Inosilicates(single chain): Clinopyroxenes major mineral of eclogite

Answer 38

Omphacite | Ca,Na)(Mg,Fe2+,Al)Si2O6

Question 39

Inosilicates (single-chain): Pyroxenoids all mineral species are triclinic. Which among these minerals are used in primarily ceramics products, metalmaking and filter and plastics and has solely the Ca component.

Answer 39

Wollastonite | CaSiO3

Question 40

Inosilicates(single-chain): Pyroxenoids' ore of Mn.

Answer 40

Rhodonite

Question 41

Inosilicates(double-chain): Among the Tremolite - ferroactinolite series, which among these is used for industrial asbestos?

Answer 41

Tremolite and Actinolite

Question 42

Phyllosilicates: TO serpentine group member tha has 95 % of asbestos resource also known as white asbestos

Answer 42

Chrysotile

Question 43

Phyllosilicates: TO structure - also known as kaolin or China clay

Answer 43

Kaolinite

Question 44

Phyllosilicates: TOT structure- The softest mineral, greasy feel

Answer 44

Talc | Mg3Si4O10(OH)2

Question 45

Phyllosilicates: TOT structure - use in the production of rubber.

Answer 45

Pyrophyllite | Al2(Si4O10)(OH)2

Question 46

Phyllosicates: The Mica group | TOT+c structure - used as an insulator and semiconductors.

Answer 46

Biotite

Question 47

Phyllosilicates: The Mica Group | TOT+c structure - Biotites' Mg rich

Answer 47

Phlogopite

Question 48

Phyllosicates: The Mica group | TOT+c structure: used an insulator and semi conductor and automotive tires and cosmetic.

Answer 48

Muscovite

Question 49

Phyllosicates: The Mica Group | TOT+c structure --- exhibits triboluminescence and source of Li

Answer 49

Lepidolite

Question 50

Phyllosilicates: The Clay Minerals | Clay mineral's ore of Cu

Answer 50

Chrysocolla | Cu,Al)2H2Si2O5.nH2O

Question 51

Phyllosilicates: The Clay Minerals | Non expanding clay

Answer 51

Illite

Question 52

Phyllosilicates: The Clay Minerals | expanding clay

Answer 52

Montmorillionite

Question 53

A rock that is composed mainly of the clay minerals montmorillionite, forms from the weathering volcanic ash

Answer 53

Bentonite

Question 54

Tectosilicates: Silica group phase diagram includes an array of all specific P&T occurences of particular polymorphs of quartz. At High P and Low T what does formed?

Answer 54

Stishovite

Question 55

Tectosilicates: The Silica Group | at Low P and Low T?

Answer 55

alpha quartz

Question 56

Tectosilicates: The Silica Group | at Low P and at High T?

Answer 56

Cristobalite

Question 57

Tectosilicates: Quartz variety is due to the impurities that exhibit different colors for each quartz specimen. What gives violet to purple color to amethyst?

Answer 57

Fe

Question 58

Tectosilicates: (color) yellow to citrine?

Answer 58

Fe

Question 59

Tectosilicates: (color) smokey color to smokey quartz?

Answer 59

Al

Question 60

Tectosilicates: (color) rose red to rose quartz?

Answer 60

Dumorterite

Question 61

Tectosilicates: (color) color to milky quartz?

Answer 61

Fluid inclusion

Question 62

Tectosilicates: A variety of quartz that is commonly mistaken for diamond.

Answer 62

Herkimer diamond - double terminated quartz

Question 63

Tectosilicates: How will you distinguish Plagioclase feldspar from K Felds?

Answer 63

Striations!

Question 64

Tectosilicates: The Feldspathoid group | framework silicate that reacts with warm HCl.

Answer 64

Cancrinite

Question 65

are those that contain magnesium and/or iron as major constituent. The term was derived by these minerals – ma from magnesian and f from the latin word for iron, ferrum

Answer 65

Mafic minerals

Question 66

minerals that lacks Mg and Fe as major constituent.

Answer 66

Felsic minerals