Mineralz Flashcards
is a naturally occurring, inorganic, homogenous solid with definite chemical composition and ordered internal/crystalline structure.
minerals
Physical Properties of Minerals
Color,streak,Luster, Crystal Habit, Hardness, Cleavage, Fracture, Specific Gravity, Solubility, Melting point
is the perceived wavelength of light that bounced off from the material and is detected by our eyes.
Color
is the color of a mineral in powdered form
Streak
is the behavior of light as it is reflected by the surface of the mineral.
luster
8 kinds of luster
Pearly, Silky, Resinous, Dull, Earthy, Adamantine, Vitreous or glassy, Metallic
minerals appear the same as a pearl
pearly
Is a naturally occurring,in organic,homogenous solid with definite chemical composition and ordered internal/crystalline steucture
Mineal
fine pararllel threads silk like
silky
has a plain looking sheen
dull
same as resin or chewing gum
Resinous
opaque and looks like earth or dirt
earthy
very shiny and vibrant
Adamantine
same sheen as glass
Vitreous or glassy
polished metal
Metallic
is the characteristic shape in which a mineral grows and is a projection of the mineral’s crystal structure. Some common habits are acicular, blocky, tabular, fibrous, bladed, dendritic, and prismatic
Crystal habit
7 kinds of Crystal habit
Acicular
Blocky
Tabulated
Fibrous
Bladed
Dendritic
Prismatic
Needle like wider than fibrous thinner than prismatic
Acicular
Rectangular cut sides are not necessarily flat
Blocky
Tablet like, flat square
Tabular
Furry like, thinner than acicular
Fibrous
Shape is like a knife
Bladed
Plant like
Dendritic
Pencil like, thicker than acicular
Prismatic
is the resistance of a mineral to scratching.
Hardness
is the tendency of a mineral to break along particular directions.
Cleavage
is the ratio of a minerals’ weight to the weight of an equal volume of water.
Specific gravity
is the pattern in which the mineral breaks aside from its planes of cleavage.
Fracture
refers the ability of a substance to dissolve in a solvent at a specified temperature
Solubility
refers to the temperature at which solid turns into liquid.
Melting point