|
When combined with clay, this mineral seenhereis what makes up the lead in your pencils |
graphite
|
$400 |
J |
ROCKS & MINERALS |
2023-04-03 |
#8841 |
|
Mines near Ticonderoga, New York were once the USA's principal source for this 8-letter mineral |
graphite
|
|
FJ |
ROCKS & MINERALS |
2006-04-24 |
#4986 |
|
The "lead" in pencils is actually a mixture of clay & this mineral |
graphite
|
$800 |
J |
ROCKS & MINERALS |
2003-10-31 |
#4405 |
|
German geologist Abraham Werner gave this mineral its name, derived from a Greek word for "to write" |
graphite
DD
|
$4,200 |
DJ |
MINERALS |
2003-05-21 |
#4323 |
|
Its old name, plumbago, came from its use in lead pencils |
graphite
|
$800 |
DJ |
ROCKS & MINERALS |
2003-01-01 |
#4223 |
|
The name of this soft black mineral is from the Greek for "to write" |
graphite
|
$800 |
DJ |
ROCKS & MINERALS |
1997-07-03 |
#2974 |
|
With its softness & greasy feel, this form of carbon may be confused with molybdenite |
graphite
|
$600 |
DJ |
ROCKS & MINERALS |
1995-05-08 |
#2471 |
|
This soft black mineral, a form of carbon, is the primary raw material for synthetic diamonds |
graphite
|
$600 |
DJ |
ROCKS & MINERALS |
1993-03-04 |
#1964 |
|
Sometimes called "black lead", this mineral can be manufactured from coke |
graphite
|
$600 |
DJ |
MINERALS |
1992-04-21 |
#1772 |
|
From Greek for "to write", it's what does the writing in most pencils |
graphite
|
$400 |
J |
MINERALS |
1988-05-23 |
#871 |