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Most Expensive Substances (by Weight)

Given the price per gram and a hint, guess the valuable substance.
Quiz by interopia
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Last updated: April 1, 2023
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First submittedApril 1, 2017
Times taken173
Average score50.0%
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$/gram
Category
Clue
Substance
27,813,000,000,000
Liquid
Used in computer technology
printer ink
21,080,000,000
Positrons, for example
Positrons, for example
antimatter
27,000,000
Element
Most expensive element
californium
55,000
Precious stone
Often used in engagement rings
diamond
30,000
Gas
Used in lighting signs
tritium
20,000
Precious stone
Discovered by Richard Taaffe
taaffeite
4,000
Radioactive metal
Needed for flux capacitor
plutonium
3,000
Drug
Timothy Leary
LSD
215
Drug
Pablo Escobar
cocaine
120
Drug
Kurt Cobain
heroin
110
Drug
Walter White
methamphetamine
90
Animal product
Consists of keratin
rhino horn
40
Metal
King Midas
gold
35
Food
Found primarily in the Caspian Sea
Iranian beluga caviar
31
Metal
Name from Spanish for "little silver"
platinum
30.5
Metal
Name from Greek for "rose"
rhodium
11
Spice
From the Crocus sativus flower
saffron
7
Food
Subterranean
white truffle
interopia
+1
Level 84
Apr 2, 2017
April Fool!
DDquizzer
+1
Level 35
Apr 2, 2023
I verified on Internet before seeing this comment lol
overtired
+1
Level 83
Apr 1, 2023
Ha! Nice one.
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