In this activity
will be attempting to identify minerals
based on the physical properties
materials needed for this activity
include a streak plate
a penny and a steel file it published cable
mineral properties
any minerals properties worksheet the
first property we want to identify
is the color or luster on the mineral
luster
we're referring to the way in which late
with lots of the surface of the mineral
to identify luster as you to being
metallic
or non-metallic because the color and
luster other mineral
on the worksheet next we will determine
the hardness of the mineral
harnesses rank any number scale ranging
from 1
for very soft minerals 210 for being
very hard
we'll be using your fingernail a penny
and the steel file to determine the
approximate hartness the mineral
if you can scratch them in with your
fingernail
the minnows relatively soft now and
would have a number up either one or two
if you cannot scratch them in with your
fingernail
but can with a penny the hardest would
be approximately three or four
if you can scratch them in with a steel
file
the harness is about five or six if you
cannot scratch them in with a steel file
the hardest would be probably e7
or eight because the hardness of the
mineral
on the worksheet cleavages the next
property to determine
cleavages the ability of a mineral to
produce a clean smooth surface when
broken
in this sample you can see that there
are smooth surfaces where the mineral
has been broken
on the worksheet rate in either yes or
no
as to whether or not you believe the
mineral shows cleavage sometimes the
color minerals powder is different from
the color of the solid mineral
the streak test is used to determine the
minnows powder collar
Robin edger the mineral across the
surface of the street played
and nor is the color of the powder left
behind record this caller on the
worksheet
sometimes minnows have special
properties
that can be used to identify the mineral
these properties include a salty taste
magnetism distinct colors or order this
particular mineral
has special properties have been heavy
for its size which we call heft
and has a definite cubic shape write a
brief description of the mineral special
property
on the worksheet finally we will compare
the physical properties that we tested
in recorded with the properties
shown unpublished cables in this example
we have match up the properties and
determined that the minerals name
is going a we quote the name admin on
the worksheet
you can now then move on and begin
testing physical properties of the new
mineral sample
