Fe

Question 1

A lustrous,ductile and malleable, silver gray metal that is strongly attracted by a magnet and itself easily magnetized. It is the 4th most common element and 2nd most abundant metallic element of which it constitute 5% by weight.

Answer 1

Fe

Question 2

Red earthy variety

Answer 2

Red ochre

Question 3

Metallic variety

Answer 3

specularite

Question 4

massive variety

Answer 4

marthite

Question 5

chiefly strong magnetism and a natural magnet variety

Answer 5

magnetite or lodestone

Question 6

relative density of Fe

Answer 6

5.2 g/cm3

Question 7

The most important Iron deposits in the Philippines

Answer 7

skarn

Question 8

Next economic importance to skarn

Answer 8

magnetite sand

Question 9

The magnetite concentrates in processing Fe alluvial deposits usually contain impurites of?

Answer 9

titanium and Vanadium

Question 10

Beach sand mining remains probihited in the Philippines with the passage of - “An act Prohibiting the extraction of Gravel and Sand from beaches and Providing penalties thereof-“ which was approve on Nov 13, 1982.

Answer 10

Batas Pambansa blg. 265

Question 11

how much of the total land archipelago is comprised of laterite deposits?

Answer 11

more than 5%

Question 12

The only two known sedimentary Fe bedded deposits in the Philippines are?

Answer 12

Camalaniugan deposit (Cagayan) and Tinambac deposit (Camarines Norte)

Question 13

The Camalaniugan deposit is of what age?

Answer 13

Plio-Pleisto

Question 14

Host of the Fe deposit of Camalaniugan?

Answer 14

Pliocene Ilagan sandstone where it extend to Pleistocene Alat Conglomerate

Question 15

The only bog Fe deposit that is of importance

Answer 15

Taan Deposit (Nueva, Vizcaya)

Question 16

The oldest rock suite (early miocene) and host to Fe-base metal mineralization of the Larap-Fe-Cu-Mo skarn deposit

Answer 16

Universal Formation