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Potassium Feldspar

Mineral

non metalic luster

H > 5.5

White streak

pink color

2=90 degrees clevage

Graphite

mineral

metallic

H<2

sliver/grey streak

silver/grey color

no clevage

Galena

Mineral

Metallic

H<3

silver/grey streak

silver/grey color

cubic clevage

Calcite

mineral

Non metallic

H<5.5

White streak

white/clear color

rhombohedron clevage

Muscovite

Mineral

Non metallic

H<2

no streak

white/green color

1 plane of clevage

plagioclase feldspar

mineral

non metallic

H>5.5

No streak

white color

cubic clevage

copper

mineral

metallic

H=3

copper streak

copper color

no clevage

Quartz

mineral

non metallic

H>5.5

no streak

white color

no clevage

Garnet Group

mineral

glassy look

Non metallic

H>5.5

No streak

red/brown color

no clevage

Gypsum

mineral

non metallic

H<2

white streak

clear/white

1 good plane of clevage

Pyroxine group

mineral

non metallic 

H>5.5

no streak

green/black

2=90 degree clevage

Halite

mineral

salty/glassy/transparent

non metallic

H<3

White streak

clear/translucent color

cubic=90 clevage

Biotite

mineral

non meallic

H<2

green or brown streak

black/brown color

1 plane of clevage

flexible

Olivine

mineral

non metallic

H>5.5

No streak

olive green color

no clevage

hematite

mineral

non metallic

H>5.5

purple/red/brown streak

grey/red color

no clevage

pyrite

metallic

h>5.5

gre/black streak

gold color

no clevage

amphibole

mineral

non metallic

h>5.5

green/black streak

black color

2 planes of clevage not equal to 90 degrees

talc

mineral

pearl luster

H<2

White streak

white color

1 plane of clevage

feels soapy

magnetite

mineral

metallic

H>5.5

Black green streak

black/orange color

no clevage

magnetic*

sulfer

mineral

non metallic 

h<2

yellow streak

yellow color

no clevage

bad smell

kaolinite

mineral

non metallic

H<2

White streak

white color

no clevage

powdery earthy

limonite

mineral

non metallic

H<2

Clay orange streak

earthy orange color

no clevage

earthy

Diorite

igneous rock

paneritic texture

plag feldspar, feldspar minerals present

cools slowly

porpherytic andesite

igneous rock

porpherytic texture

plag feldspar

amphibole

cools slow then fast

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scoria

bubbly, vesicular, prous texture

pyroxene, plag feldspar, dark color

cools fast with gas

basalt

igneous rock

aphanitic texture

olivine pyroxene mineral present

cools fast

tuff

igneous rock

pyroclastic fragmental

potassium feldspar and sodium plygoclase

cooled fast

granite

igneous rock

phaneritic

quartx feldspar amphibole

cools slowly

gabbro

phaneritic

olivine, calcium plageoclase

cools slowly

obsidion

glassy texture

magnetite, ferromagnesium

cools fast

ryolite

igneous rock

aphynitic texture

feldspar and quartz

cools fast

pumice

igneous rock

vesicular texture

sodium plygoclase, potassium feldspar

cools fast with gas

micrite

sedimentary rock

chemical component

microcrystalline, conhodial fracture

calcite mineral

conglomerate

sedimentary rock

course grain texture

clastic 

quartz, rock fragments

breccia

sedimentary rock

course grain

clastic

limestone, hemotite

conquina

fossil and fossil fragments

biogenic

calcite

fossilferous limestone

sedimentary

abundant fossils in calcareous matrix

calcite

coal

sedimentary

biogenic

carbon

chert

microcrystalline texture

biogenic

quartz, chalcedony

shale

sedimentary

very fine grain

clastic

clay

sandstone

medium grain

clastic

quartz and rock fragments

rock gypsum

sedimentary

fine grain

biogenic

gypsm

Gneiss

metamorphic 

foliated

pyroxene, amphibole, feldspar, quartz

high metamorphic grade

slate

metamorphic rock

foliated

chlorite, mica

low metamorphic grade

phyllite

metamorphic rock

foliated

talc, chlorite, mica

medium metamorphic grade

schist

metamorphic

foliated

mica, feldspar, quartz

medium grade

quartzite

metamorphic

non foliated 

quartz

marble

metamorphic

non foliated

calcite

coal, anthracite

metamorphic

non foliated

organic material