Mn, Au, and Ag

Question 1

Main ore of Manganese

Answer 1

Rhodonite (MnSiO3)

Question 2

A rock is termed manganiferous if it contains

Answer 2

5-10% Mn

Question 3

A rock is termed ferruginous manganese ore if it contains

Answer 3

10-35% Mn

Question 4

A rock is termed manganese ore if it contains

Answer 4

> 35% Mn

Question 5

VMS or black smokers are usually found at latitudes

Answer 5

between 45 deg N and 25 deg S

Question 6

Ferromanganese Mn content

Answer 6

78%

Question 7

Spiegelesen Mn Content

Answer 7

12 to 33 %

Question 8

Classification of Mn Desposits

Answer 8

Volcanogenic
Non-Volcanogenic
Hybrid

Question 9

Volcanogenic deposits are usually

Answer 9

agglomerates, tuff

Question 10

Non-Volcanogenic deposits are usually

Answer 10

> -BIF
-Bog, Lacustrine, Fluvial, Continental/terrigenous
-Sedimentary Deposits

Question 11

Hybird deposit characteristics

Answer 11

> -Nodular/seafloor sediments
volcanic and sed processes

Question 12

a troy ounce is equal to

Answer 12

31.1 grams

Question 13

Sterling silver is _% Ag

Answer 13

92.5

Question 14

Calaverite

Answer 14

AuTe2

Question 15

Sylvanite

Answer 15

(Au,Ag)Te2

Question 16

Gold Districts in the Ph

Answer 16

Baguio-Mangkayan
Cam Nor
Surigao
Masara
Masbate
Paracale

Question 17

A rock is termed manganiferous if it contains

Answer 17

5-10% Mn

Question 18

A rock is termed ferruginous manganese ore if it contains

Answer 18

10-35% Mn

Question 19

A rock is termed manganese ore if it contains

Answer 19

> 35% Mn

Question 20

VMS or black smokers are usually found at latitudes

Answer 20

between 45 deg N and 25 deg S

Question 21

Au density

Answer 21

19.3 g/cm^3

Question 22

Au mohs

Answer 22

2.5 - 3

Question 23

Ag density

Answer 23

10.1 to 11.1 g/cm3

Question 24

Examples of Supergene deposits

Answer 24

Gossan
Placer

Question 25

Examples of Hypogene deposits

Answer 25

Epithermal, Skarn, Mesothermal