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Esquema molecular
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Ichnusaite
Th(MoO4)2·3H2O
Description
Ichnusaite is a rare hydrated thorium molybdate mineral, discovered at the Su Senargiu mine in Italy.
Chemical composition
Chemical formula
Th(MoO4)2·3H2O
Classification
molibdatos
Crystal system
monoclínico
Luster
nacarado
Streak
blanca
Density
5.4 g/cm³
Temperatura de fusión
1050 °C
Mohs Scale — 2.5/10
1
2
3
4
5
6
7
8
9
10
Referencia: Calcita
Color
#f0e68c
#fffaf0
blanco amarillento
Usos
Uso cotidiano
Limited use as a mineral collection specimen.
Uso industrial
Source for studying thorium and molybdenum geology.
Similar minerals
Compare species
| Properties | Ichnusaite | Scheelite | Scheelite | Ferrimolybdite |
|---|---|---|---|---|
| Chemical formula | Th(MoO4)2·3H2O | CaWO4 | CaWO4 | Fe2(MoO4)3 · 8H2O |
| Classification | molibdatos | Tungstates | Tungstates | Other |
| Crystal system | monoclínico | tetragonal | tetragonal | ortorrómbico |
| Hardness | 2.5 | 4.5 | 4.5 | 3 |
| Density | 5.4 g/cm³ | 6.1 g/cm³ | 6.1 g/cm³ | 3 g/cm³ |
| Luster | nacarado | Vítreo a adamantino | Vítreo a adamantino | sedoso |
| Streak | blanca | Blanca | Blanco | amarillo pálido |
| Cleavage | Unknown | Unknown | Unknown | Unknown |
| Transparency | Unknown | Unknown | Unknown | Unknown |
Similar minerals: ferrimolibdita · wulfenita · scheelita
Derivatives and uses
Thorium oxides and molybdenum compounds.
Periodic table
Contains elements: Th · Mo · O · H
H
Hydrogen
#1 · Nonmetals
Atomic mass1.008 u
Density0.0899 g/cm³
Melting point-259.2 °C
Boiling point-252.9 °C
StateGas
Alkali metalsAlkaline earth metalsTransition metalsPost-transition metalsMetalloidsNonmetalsHalogensNoble gasesLanthanidesActinides