Rock Classification 3

Question 1

List the main qualities of obsidian

(I/S/M, C/NC, F/NF I/E, O, Any minerals that it can contain, and color)

Answer 1

Igenous, extrusive, glassy, dark color

Question 2

List the main qualities of a conglomerate

(I/S/M, C/NC, F/NF I/E, O, Any minerals that it can contain)

Answer 2

Sedimentary, clastic.

Question 3

List the main qualities of breccia.

(I/S/M, C/NC, F/NF I/E, O, Any minerals that it can contain)

Answer 3

Sedimetary, Clastic

Question 4

List the main qualities of sandstone.

(I/S/M, C/NC, F/NF I/E, O, Any minerals that it can contain)

Answer 4

Sedimentary, clastic, can contain quartz sand grains => strata of sandstone. Cemented with silica, calcite, or iron oxide.

Question 5

List the main qualities of siltstones

(I/S/M, C/NC, F/NF I/E, O, Any minerals that it can contain)

Answer 5

Sdiementary, clastic, high clay content, usually gray

(can also be white, brown, green, red, or black)

(often contains fossils)

Question 6

List the main qualities of shales.

(I/S/M, C/NC, F/NF I/E, O, Any minerals that it can contain)

Answer 6

Sedimentary, clastic high clay content, usually gray.

(can also be white, brown, green, red, or black)

(often contains fossils)