Mineral Varieties

Question 1

Ruby red in transparent crystals of cuprite

Answer 1

Ruby copper

Question 2

Red gem corundum

Answer 2

Ruby

Question 3

Black granular corundum

Answer 3

Emery

Question 4

Gem corundum of any other color

Answer 4

Sapphire

Question 5

Micaceous and foliated hematite

Answer 5

Specular

Question 6

Red earthy variety of hematite

Answer 6

Red ocher

Question 7

Platy and metallic variety of hematite

Answer 7

Specularite

Question 8

reniform shaped with radiating fibrous appearance cassiterite variety

Answer 8

Wood tin

Question 9

Cassiterite variety occurring as rolled pebbles in placer deposits

Answer 9

Stream tin

Question 10

Massive, botryoidal form with banded structure variety of uraninite

Answer 10

Pitchblende

Question 11

magnetite variety which may act as a natural magnet

Answer 11

Lodestone

Question 12

Magnetite intergrowth with corundum forms _______

Answer 12

Emery

Question 13

Generally loose and porous goethite

Answer 13

Bog ore

Question 14

Formed in the tropics, is a soil consisting mainly of hydrous aluminum and ferric oxides

Answer 14

Laterite

Question 15

Halide crystals or granular crystalline masses showing cubic cleavage

Answer 15

Rock salt