ENST 200 R&M Characteristics

Question 1

Quartz

Answer 1

Layers/Cleavage, smooth, Pink/white, mildly shiny

Question 2

Orthoclase

Answer 2

Pinkish Red, Layered, Smooth, Flaky, Shiny

Question 3

Plagioclase

Answer 3

Beige/Pink, Cleaves Straight, Internal Layers, Shiny

Question 4

Muscovite

Answer 4

Resembles light plastic, thin transparent sheets

Question 5

Biotite

Answer 5

Resembles dark plastic, thin sheets

Question 6

Calcite

Answer 6

Semitransparent, Reacts with HCl, White, angular

Question 7

Dolomite

Answer 7

Off-white, small sparkles, as hard as a penny, chunky

Question 7

Apatite

Answer 7

Bright Green, Cleavage, Slightly shiny

Question 8

Olivine

Answer 8

Slightly green, slightly chunky, gritty

Question 9

Hornblende

Answer 9

Black, flaky, slightly shiny, Layers

Question 10

Serpentine

Answer 10

Dark Gray, slightly pitted with green, small chunks, white streak

Question 11

Hematite

Answer 11

Black with red undertones, chunky, red streak

Question 12

Limonite

Answer 12

Orange, Pitted, orange streak

Question 13

Pyrite

Answer 13

Angular, gold shimmer, grayish streak

Question 14

Gypsum

Answer 14

Can scratch with fingernail, off-white towards pink, chunks

Question 15

Syenite

Answer 15

Gray, flecks of black, chunky

Question 16

Granite

Answer 16

Small chunks, Light Gray, tan bits

Question 17

Rhyolite

Answer 17

Light Pink/Tan, Uniform color, small holes

Question 18

Gabbro

Answer 18

Dark Gray/Brown, Big Chunks

Question 19

Basalt

Answer 19

Matte Black, sorta angular, breaks with small lines

Question 20

Obsidion

Answer 20

smooth, black or dark red, shiny

Question 21

Gneiss

Answer 21

Gray/tan, contains streaks of black, chunky

Question 22

Phyllite

Answer 22

Many lines, very dark gray, breaks along lines

Question 23

Schist

Answer 23

flecks of shiny bits, orange and gray, minimal chunks

Question 24

Marble

Answer 24

pale to orange, small chunks, reacts with HCL, white streak, pretends to be shiny

Question 25

Slate

Answer 25

dark red, flat, clearly layered, smooth

Question 26

Shale

Answer 26

small clumps, reddish brown, sorta layered

Question 27

Sandstone

Answer 27

looks like sand, tan, gritty

Question 28

Calcitic Limestone

Answer 28

light gray, small/no chunks, reacts with HCl, gritty/dusty

Question 29

Dolomitic Limestone

Answer 29

dark gray, smoothish, angular, reacts with HCl

Question 30

Conglomerate

Answer 30

chunks of individual stuff, lumpy, multicolored.