| A | B |
|---|
| mass | amount of matter in an object |
| volume | the amount of space an object occupies |
| weight | a force of attraction between objects that is due to gravity |
| density | the mass per unit volume |
| fracture | a mineral that does not cleave and breaks along a rough or jagged surface |
| cleavage | the tendency of a mineral to break along smooth definite surfaces |
| gemstone | a suvstance that can be cut and polished for jewelry |
| hardness | ability of a mineral to resist being scratched |
| luster | the way a mineral reflects light from its surface |
| metal | an element that is easily shaped and conducts heat and electricity |
| mineral | naturally occurring, inorganic solid that has a definite chemical composition and crystal shape |
| ore | a mineral or rock from which metals and nonmetals can by removed in usable amounts |
| streak | the color of the powder left by a mineral when it is rubbed against a hard, rough surface |
| pewter | formed by combining lead and tin |
| stainless steel | formed by combining chromium and iron |
| brass | formed by combinin copper and zinc |
| talc | the softest mineral on the Mohs hardness scale |
| diamond | The hardest mineral on the Mohs hardness scale |
| quartz | a common mineral with a hexagonal crystal shape |
| magnetite | a mineral that is naturally magnetic |
