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Esquema molecular
Arrastra para rotar · rueda o pinza para ampliar
Orpiment
As2S3
Description
Orpiment is an arsenic sulfide mineral with a deep yellow color, common in hot springs and fumaroles.
Chemical composition
Chemical formula
As2S3
Classification
Sulfides
Crystal system
monoclínico
Luster
resinoso
Streak
amarillo pálido
Density
3.49 g/cm³
Temperatura de fusión
300 °C
Mohs Scale — 1.5/10
1
2
3
4
5
6
7
8
9
10
Referencia: Yeso
Color
#fff700
#ffd700
amarillo limón
Usos
Uso cotidiano
Historically used as a pigment in paintings and manuscripts.
Uso industrial
Source of arsenic, semiconductor manufacturing, and fireworks.
Similar minerals
Compare species
| Properties | Orpiment | Realgar | Sulfur |
|---|---|---|---|
| Chemical formula | As2S3 | As4S4 | S |
| Classification | Sulfides | Sulfides | elemento_nativo |
| Crystal system | monoclínico | monoclínico | ortorrómbico |
| Hardness | 1.5 | 2 | 1.5 |
| Density | 3.49 g/cm³ | 3.56 g/cm³ | 2.07 g/cm³ |
| Luster | resinoso | Resinoso a graso | resinoso |
| Streak | amarillo pálido | Naranja-rojizo | amarillo |
| Cleavage | Unknown | Unknown | Unknown |
| Transparency | Unknown | Unknown | Unknown |
Similar minerals: Realgar · Azufre
Derivatives and uses
Arsenic trioxide, artistic pigments.
Geographic distribution
Extraction countries: China, Perú, Estados Unidos, Rumanía
Periodic table
Contains elements: As · S
S
Sulfur
#16 · Nonmetals
Atomic mass32.06 u
Density2.07 g/cm³
Melting point115.2 °C
Boiling point444.6 °C
StateSolid
Alkali metalsAlkaline earth metalsTransition metalsPost-transition metalsMetalloidsNonmetalsHalogensNoble gasesLanthanidesActinides