Term
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Definition
- Is soapy
- Your fingernail will scratch it
- Dull earthy colors
- Fractures
- Makes Talcum powder |
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Term
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Definition
- Very magnetic
- Silvery and shiny
- Is fairly heavy (high gravity)
- Fractures
- Is used for ore of Iron |
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Term
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Definition
- Very Hard (H7)
- Is green and somewhat shiny
- Has conchoidal fractures
- Has a white streak
- Looks Granular
- Used in steel production |
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Term
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Definition
- Has a reddish/brown streak
- Can be weakly magnetic
- Used in Iron Ore |
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Term
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Definition
- High Gravity
- Very soft (can be scratched with penny)
- Is shiny and gray
- Has a dull gray streak
- Used in ore of Lead |
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Term
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Definition
- Shiny (Vitreous)
- Very hard (H7)
- Takes on opaque colors
- Fractures conchoidally
- Used in gemstones/Oscillating watches |
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Term
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Definition
- Reacts with acid
- Will be scratched by penny (H3)
- Has a white streak (color of mineral is generally white as well)
- Used in antacid, animal shells, and used in cement |
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Term
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Definition
- Cleaves into little sheets
- Is dark colored
- Is very soft (H2)
- Is used as electrical insulator |
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Term
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Definition
- Red colored
- Scratches Glass
- Glassy/Shiny/Transparent-ish
- Usually grows in isometric crystals
- Used as industrial abrasive, or as a gemstone(for January) |
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Term
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Definition
- The other mineral that Cleaves into little sheets
- Is white/pearly looking
- Is very soft
- Is used as electric insulator |
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Term
| Orthoclase Feldspar (Potassium) |
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Definition
- Often pink colored (and pearly)
- Hard as glass
- DOES NOT have striations
- Has two 90 degree cleavage planes |
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Term
|
Definition
- Is salty
- Can be scratched with your fingernail
- All fractures
- Is used for table salt
- Has cubic cleavage |
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Term
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Definition
- Is cloudy white/purple
- Scratches glass
- Appears crystalline only under magnification |
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Term
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Definition
- Has Striations
- Is greenish/white
- Is as hard as glass
- Has two 90 degree cleavage planes
- Used in ceramics |
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Term
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Definition
- Will scratch a penny
- Many different colors
- Comes in diamond-like shapes(4 cleavage planes) can sometimes come in cubes
- Used as flux in steel manufacturing |
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Term
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Definition
- Termed "Fools Gold"
- Has a black streak
- Fractures
- Used in sulfuric acid, and cheap jewelry
- Scratches glass
- Is heavy (high gravity) |
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Term
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Definition
- You can use it to write
- Is greasy feeling
- Is blackish/gray
- Very soft (H1)
- Fractures
- Used in pencil lead and as a lubricant |
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Term
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Definition
- Clear and vitreous
- Can be scratched with fingernail
- Has one excellent cleavage plane
- Used in drywall, as it is fire-retardant |
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Term
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Definition
- Smells nasty
- Is yellow
- used in refining petroleum, making fertilizer, and making TNT |
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Term
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Definition
- Golden to yellow; tarnishes iridescent blue, red, green
- Will be scratched by nail (H4)
- Is metallic
- Used in Ore of copper |
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Term
|
Definition
- Dark green colored
- Will scratch a nail
- 2 cleavage directions in 90 degrees
- Some forms are used in asbestos |
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Term
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Definition
- Will scratch streak plate (H9)
- Has a vitreous luster
- Used as abrasive glass for watches, or as a ruby or sapphire gemstone |
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Term
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Definition
- Opaque black
- Has 2 decent cleavages
- Will scratch a nail(H5.5)
- Fire proof clothing, tiles (asbestos) |
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Term
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Definition
- The "power crystal"
- will generally be clear, and have 6 faces
- Has conchoidal fractures
- Will scratch nail, (and sort of glass) |
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