Collection:
Juneau—Douglas City Museum
Object ID:
2007.22.032A—C
Accession#:
2007.22
Credit Line:
Transferred from the U.S. Bureau of Land Management.
Object Name:
Crucible
Title:
Platinum Crucible
Year Range from:
1950
Year Range to:
1996
Description:
Medium Platinum Crucible
A: Crucible — Platinum
Short hollow metal column. Has spout on one side. Fits inside Crucible holder bottom.

B: Crucible holder (bottom)
Round wooden column. With solid base, but no top. From top down about two—thirds of the center is hollowed out. A small notch is on one side for spout of crucible On bottom says: USBM / 20579 (carved into wood and covered in red color).

C: Crucible holder (top)
Round wooden top for crucible holder bottom. Top is wider then bottom. Fits into crucible holder bottom.
Notes:
Platinum is used for high temperature chemical analysis because it is a noble metal and won't react with many compounds that you might want to test.

The wood case is used to help restore the shape of the crucible.
Search Terms:
Mining
T&E
JMIC
Assaying
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2007.22.032A2007.22.032A
2007.22.032B2007.22.032B
2007.22.032C2007.22.032C