Mineral Identification

Description

For this activity you will need to watch the short video(s) for each mineral. You have been provided with key characteristics for each mineral on the page with the mineral videos. You will need to identify each mineral by comparing that information with the table below to determine the mineral name. Once you have determined the mineral name you will need to create an excel table with the following columns and in this order: 

Sample Number, Luster, Hardness, Fracture/Cleavage, Streak, Color, Other properties, and Mineral name.  You will be submitting this completed table. You need to put the samples in numeric order in the chart.

Each mineral with the corresponding information is worth 3 points. 

Mineral Identification Chart

Luster

Hardness

Cleavage

Streak

Other Properties

Mineral

Metallic

> 5.5

Poor

Dark Gray

Dark silvery gray to black, H 6 to 6.5, magnetic

Magnetite

<5.5

Good

Gray – dark Gray

Bluish-­?silver, cubic, H 2.5, dense

Galena

Good

Dark gray

Dark silver-gray to black, H 1, can form sheets

Graphite

Poor

Brick red

Dull Red or silvery, H 1 – 6, can be weakly magnetic

Hematite

Good

White to pale gray

Brassy yellow, H 6 – 6.5, cubic

Pyrite

Non-metallic

>5.5

Good

White to pale gray

Dark gray to black, H 5.5-6, 56o and 124o cleavage, forms prisms

Amphibole

Poor

No streak

Red, yellow, black or brown, H 7, forms dodecahedrons, conchoidal fracture

Garnet

Poor

Brick red

Dull Red or silvery, H 1 – 6, can be weakly magnetic

Hematite

Poor/Absent

No streak

Pale to dark olive green, yellow or brown, H 7, may resemble sand grains, conchoidal fracture, used as a gemstone

Olivine

Good

White

White, gray or black, H 6, striations, tabular grains

Plagioclase feldspar

Good

White

Mainly pink, white can be green and orange, H 6, exsolution lamellae

Potassium

feldspar

Good

White to pale gray

Dark green, brown to black, H 5.5-6, cleavage at 90o, form short 8-sided prisms

Pyroxene

Poor

No streak

Many colors: white, rose, purple, blue, green, smoky, H 7.0, conchoidal fracture

Quartz

<5.5

Good

Gray-brown to white

Black-­?brown, green-black, H 2.5 – 3, thin sheets

Biotite

Good

White

Transparent, white, yellow, H 3, effervesces in acid

Calcite

Good

White

Many colors including green, yellow, purple, gray, blue, H 4, cubic

Fluorite

Good

Gray

Silvery gray, H1.0, rubs off on hands

Graphite

Good

White

Transparent, white, gray, H 2, forms blades, prisms or tabular crystals

Gypsum

Good

White

Many colors: white, blue, yellow, brown, red, transparent, H 2.5, cubic, salty taste

Halite

Good

White

Transparent, light brown, H 2 – 2.5,thin sheets

Muscovite

Poor

Pale yellow

Waxy yellow or red, H 1.5 – 2.5, smells like rotten eggs

Sulfur

Poor/Absent

White

White, green, gray, brown, H 1, greasy or soapy feel

Talc

??????

Mineral Number

Luster

Hardness

Fracture/Cleavage

Streak

Other Properties

1

non-metallic

<5.5

poor/absent

White

White, green, gray, brown, H 1, greasy or soapy feel

2

non-metallic

<5.5

good

White

Many colors: white, blue, yellow, brown, red, transparent, H 2.5, cubic, salty taste

3

non-metallic

<5.5

good

White

Many colors including green, yellow, purple, gray, blue, H 4, cubic

4

metallic

<5.5

good

Gray

Dark silver-gray to black, H 1, can form sheets

5

non-metallic

<5.5

poor

Pale Yellow

Waxy yellow or red, H 1.5 – 2.5, smells like rotten eggs

6

non-metallic

<5.5

good

White

Transparent, white, gray, H 2, forms blades, prisms or tabular crystals

7

metallic

>5.5

poor

Dark Gray

Dark silvery gray to black, H 6 to 6.5, magnetic

8

non-metallic

<5.5

good

White

Transparent, white, yellow, H 3, effervesces in acid

9

non-metallic

>5.5

poor

No Streak

Many colors: white, rose, purple, blue, green, smoky, H 7.0, conchoidal fracture

10

metallic

<5.5

good

Gray- dark gray

Bluish-­?silver, cubic, H 2.5, dense

11

metallic and non-metallic

>5.5

Poor

Brick red

Dull Red or silvery, H 1 – 6, can be weakly magnetic

12

metallic

>5.5

Good

White to pale gray

Brassy yellow, H 6 – 6.5, cubic

13

non-metallic

>5.5

Good

White

White, gray or black, H 6, striations, tabular grains

14

non-metallic

>5.5

Good

White

Mainly pink, white can be green and orange, H 6, exsolution lamellae

15

non-metallic

<5.5

Good

Gray-brown to white

Black-­?brown, green-black, H 2.5 – 3, thin sheets

16

non-metallic

<5.5

Good

White

Transparent, light brown, H 2 – 2.5,thin sheets

17

non-metallic

>5.5

Good

White to pale gray

Dark green, brown to black, H 5.5-6, cleavage at 90o, form short 8-sided prisms

18

non-metallic

>5.5

Poor/Absent

No streak

Pale to dark olive green, yellow or brown, H 7, may resemble sand grains, conchoidal fracture, used as a gemstone

19

non-metallic

>5.5

Good

White to pale gray

Dark gray to black, H 5.5-6, 56o and 124ocleavage, forms prisms

20

non-metallic

>5.5

Poor

No streak

Red, yellow, black or brown, H 7, forms dodecahedrons, conchoidal fracture

Minerals – Google Drive here is the link that includes the all of the rocks you can see.

Do you need help with this assignment? Or a different one? We got you covered.

Quality Guaranteed

Any Deadline

No Plagiarism