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Esquema molecular
Arrastra para rotar · rueda o pinza para ampliar
Ametrine
SiO2
Description
Ametrine is a variety of quartz that combines amethyst and citrine in the same crystal due to variations in the iron oxidation state.
Chemical composition
Chemical formula
SiO2
Classification
silicatos
Crystal system
trigonal
Luster
vítreo
Streak
blanco
Density
2.65 g/cm³
Temperatura de fusión
1650 °C
Mohs Scale — 7/10
1
2
3
4
5
6
7
8
9
10
Referencia: Cuarzo
Color
#800080
#FFD700
Bicolor púrpura y amarillo
Usos
Uso cotidiano
Jewelry and collectibles
Uso industrial
Limited use, mainly ornamental and decorative
Similar minerals
Compare species
| Properties | Ametrine | Amethyst | Amethyst | Citrine |
|---|---|---|---|---|
| Chemical formula | SiO2 | SiO2 | SiO2 | SiO2 |
| Classification | Silicates | Silicates | Silicates | Silicates |
| Crystal system | trigonal | trigonal | trigonal | trigonal |
| Hardness | 7 | 7 | 7 | 7 |
| Density | 2.65 g/cm³ | 2.65 g/cm³ | 2.65 g/cm³ | 2.65 g/cm³ |
| Luster | vítreo | Vítreo | Vítreo | Vítreo |
| Streak | blanco | Blanca | Blanca | Blanca |
| Cleavage | Unknown | Unknown | Unknown | Unknown |
| Transparency | Unknown | Unknown | Unknown | Unknown |
Similar minerals: Amatista · Citrino · Cuarzo ahumado
Derivatives and uses
Cut quartz, faceted gems
Periodic table
Contains elements: Si · O · Fe
O
Oxygen
#8 · Nonmetals
Atomic mass15.999 u
Density1.429 g/cm³
Melting point-218.8 °C
Boiling point-183 °C
StateGas
Alkali metalsAlkaline earth metalsTransition metalsPost-transition metalsMetalloidsNonmetalsHalogensNoble gasesLanthanidesActinides