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Esquema molecular
Ewaldite
Na(Ca,Y,Ce,Dy)CO3
Description
Ewaldite is a rare carbonate mineral containing rare earth elements, originally discovered in carbonatite deposits.
Chemical composition
Chemical formula
Na(Ca,Y,Ce,Dy)CO3
Classification
carbonatos
Crystal system
hexagonal
Luster
Vítreo
Streak
Blanca
Density
3.7 g/cm³
Temperatura de fusión
800 °C
Mohs Scale — 4.5/10
1
2
3
4
5
6
7
8
9
10
Referencia: Apatito
Color
#90EE90
#FFFFE0
#FFFFFF
Verde pálido, incoloro o amarillento
Usos
Uso cotidiano
Primarily a mineralogical collector specimen.
Uso industrial
No significant industrial applications; scientific value in rare earth element studies.
Similar minerals
Compare species
| Properties | Ewaldite | Ancylite |
|---|---|---|
| Chemical formula | Na(Ca,Y,Ce,Dy)CO3 | SrCe(CO3)2(OH)·H2O |
| Classification | Carbonates | Carbonates |
| Crystal system | hexagonal | ortorrómbico |
| Hardness | 4.5 | 4 |
| Density | 3.7 g/cm³ | 3.9 g/cm³ |
| Luster | Vítreo | Vítreo a resinoso |
| Streak | Blanca | Blanca |
| Cleavage | Unknown | Unknown |
| Transparency | Unknown | Unknown |
Similar minerals: Burbankita · Ancylita
Derivatives and uses
Source of rare earth elements (lanthanides).
Galería de la comunidad
Periodic table
Contains elements: Na · Ca · Y · Ce · Dy · C · O
C
Carbon
#6 · Nonmetals
Atomic mass12.011 u
Density1.821 g/cm³
Melting point—
Boiling point—
StateSolid
Alkali metalsAlkaline earth metalsTransition metalsPost-transition metalsMetalloidsNonmetalsHalogensNoble gasesLanthanidesActinides
