 Minerals must be:  Natural  Inorganic  Crystalline structure  Definite chemical composition  Solid Rememeber! Now I Can DEFine mineralS

 Color of powdered mineral:  streak

 How easily a mineral can be scratched:  Hardness  Tools include – knife, glass, penny, fingernail

 Attraction between opposite charges:  magnetic

 This refers to the way light is reflected off of a mineral (metallic or nonmetallic):  Luster

 Breaking in no apparent order:  fracture

 Light bending through minerals:  Double refraction

 Breaking in specific patterns:  cleavage

 HCl acid reacts with calcite causing bubbles:  Effervescence

 Includes metallic and non-metallic:  Luster

 Includes soapy and gritty:  Texture

 This is the least useful mineral property:  Color

 Mohs scale measures:  hardness

 The 4 most common minerals are:  Feldspar  Quartz  Calcite  Mica

 This mineral can be identified by taste:  Halite (salt)

 This mineral effervesces when it comes in contact with acid (HCl):  Calcite

 This mineral is a 10 on Mohs hardness scale:  Diamond

 This mineral is a 1 on Mohs hardness scale:  Talc

 This mineral has perfect cleavage in 1 direction:  Mica

 This mineral is pink, has 2 planes of cleavage which meet at almost 90 degrees:  Potassium Feldspar

 Examples of malleable minerals:  Gold  Silver  Platinum

 Of the 4 most common minerals, this one is the hardest:  Quartz

 Minerals that contains silica and oxygen:  silicate

 Valuable mineral prized for its rarity and beauty:  gem

 Minerals that are magnetic contain this metal:  Iron

 Minerals are often grouped together based on:  Chemical composition

 This type of mineral gives off dangerous subatomic particles:  radioactive

 Inorganic means:  Never alive

 Mineral or combination of minerals from which useful substances can be removed:  Ore

 Synthetic means:  Man-made

 This means that a mineral can be hammered thin:  Malleable and ductile

 Over 60% of earth’s crust is made up of this family of minerals:  Feldspar

 This can cause minerals to appear in an assortment of colors:  Impurities

 A measure of density, compares the density of the mineral to the density of water:  Specific gravity

 I pull off in sheets, my color can be dark or light. I have two types – biotite or muscovite. Who am I?  Mica

 I am usually white as snow and I fizz when I touch acid, don’t you know? Who am I?  Calcite

 I am gray in color and heavy to hold. My density is high, or so I’m told. Who am I?  Galena

 I’m soft and gray and in your writing utensil. It’s me! Not lead that’s in your pencil. Who am I?  Graphite

 I split into cubes when I’m forced to break. I’m used to season your French fries and steak. Who am I?  Halite

 I have cubic crystals and I’m brassy bold. Some would call you a fool if you mistake me for gold. Who am I?  Pyrite

 My concoidal fracture can help identify me. I also make up the sand by the sea. Who am I?  Quartz

 I’m not the most popular fellow because I’m smelly and yellow. Who am I?  Sulfur

 On Moh’s hardness scale, I’m considered a 10! Some also call me a girl’s best friend. Who am I?  Diamond

 I’m a 1 on Moh’s hardness scale. I try to scratch other minerals, but I fail. Who am I?  Talc

 I can be sparkly silver or red like rust, but either way my streak is a red-brown dust. Who am I?  Hematite

 My special property that makes me cool is attracting iron with my magnetic pull. Who am I?  Magnetite

 Thank you for studying!  Make sure you also review:  Your notes  Your FTF  Your mineral packet  Your lab