FREE AND STUDY GAMES ABOUT ROCKS MINERALS

PDF Download FREE AND STUDY GAMES ABOUT ROCKS & MINERALS

EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -64 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: a mineral with vitreous luster, is black/brown/green in color (mafic), green streak, harness of 5/6, has 2 perfect planes of cleavage

Answer:

Pyroxene Question 2: a mineral with sub-metalic luster, is grey in color, dark grey streak, hardness of 1.5/2, often used for pencils

Answer:

Graphite Question 3: a mineral with metalic luster, is brass yellow in color, grey/greenish black streak, hardness of 6.5

Answer:

Pyrite

Question 4: composed of dead organisms

Answer:

Organic Sedimentary Rock

Question 5: An igenous texture formed when a rock cools so fast it doesn't

have time to crystallize, rather it forms a smooth glassy surface (typically found from surfaces of lava flows)

Answer:

glassy texture

Question 6: a mineral with viterous luster, is pink/white/grey in color, white

streak, hardness of 6/6.5

Answer:

Feldspar Question 7: an igenous rock with a vesicular texture & mafic composition, however this rock is much heavier than its vesicular rock counterparts

Answer:

Vesicular Basalt Question 8: an igneous rock with aphanitic texture (fine grain) & mafic composition

Answer:

Basalt Question 9: forms when minerals become supersatu in a solution and precipitate to form a rock

Answer:

Chemical Sedimentary Rock

Question 10: low grade metamorphic rock, satin luster, slate protolith

Answer:

Phyllite

Question 11: an igneous rock with a vesicular texture & mafic composition

Answer:

Scoria

Question 12: an igneous rock with phaneritic texture (coarse grain) & mafic composition

Answer:

Gabbro Question 13: an igneous rock with phaneritic texture (coarse grain) & felsic composition

Answer:

Granite

Question 14: slightly less shiny than glass

Answer:

sub-vitreous luster Question 15: : A texture of igneous rocks in which the crystals are too small for individual minerals to be distinguished without the aid of a microscope (indicates fast cool time)

Answer:

aphanitic texture

Question 16: very soft chemical rock, is an evaporite

Answer:

Rock gypsum Question 17: a mineral with vitreous luster, can be any color, white streak, hardness of 7, has conchoidal fracture

Answer:

Quartz Question 18: high grade metamorphic rock, experiences some partial melting, migmatite protolith

Answer:

Migmatite

Question 19: an igneous rock with a vesicular texture & felsic composition

Answer:

Pumice

Question 20: a biochemical rock that is poorly sorted, contains fossils, acid reactive

Answer:

Fossiliferous Limestone

Question 21: shines like silk, the surface of the mineral is slightly textured

Answer:

silky luster

Question 22: a mineral with vitreous luster, is light brown/clear in color

(felsic), white streak, hardness of 2.5/3, has perfect cleavage in one direction

Answer:

Muscovite (mica) Question 23: a mineral with either a metalic or earthy luster, is grey/brown/red in color, maroon streak, hardness of 6.5, has weak magnetism

Answer:

Hematite

Question 24: an igneous rock with glassy texture & mafic composition

Answer:

Obsidian

Question 25: chemical rock made up of halite, is an evaporite

Answer:

Rock salt

Question 26: a mineral with vitreous luster, is dark green/black

in color (mafic), grey/white streak, hardness of 5/6

Answer:

Amphibole (Hornblende)

Question 27: an igenous rock comprised of a bunch of ash & crystal

grains

Answer:

Pyroclastic texture