| Fiorite | |
|---|---|
| General | |
| Category | Mineraloid |
|
Formula (repeating unit) | SiO2·nH2O |
| Identification | |
| Crystal habit | Globular, botryoidal, or stalactic |
| Fracture | Conchoidal |
| Luster | Pearly |
Fiorite is a hydrated silica mineraloid, a form of opal, found in cavities in volcanic tuff. It is a globular, botryoidal, or stalactic concretionary form of opal. The mineraloid has a pearly lustre and forms botryoidal masses. Named after Santa Fiora, Italy, fiorite is used as a gemstone. [1]
See also
References
- ^ Manutchehr-Danai, Mohsen (2000). Dictionary of Gems and Gemology. Springer-Verlag. p. 182. ISBN 978-3540674825.
| Crystalline | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cryptocrystalline | |||||||||
| Amorphous | |||||||||
| Miscellaneous | |||||||||
| Notable varieties |
| ||||||||
 | This article about a specific mineral or mineraloid is a stub. You can help Wikipedia by expanding it. |
| Fiorite | |
|---|---|
| General | |
| Category | Mineraloid |
|
Formula (repeating unit) | SiO2·nH2O |
| Identification | |
| Crystal habit | Globular, botryoidal, or stalactic |
| Fracture | Conchoidal |
| Luster | Pearly |
Fiorite is a hydrated silica mineraloid, a form of opal, found in cavities in volcanic tuff. It is a globular, botryoidal, or stalactic concretionary form of opal. The mineraloid has a pearly lustre and forms botryoidal masses. Named after Santa Fiora, Italy, fiorite is used as a gemstone. [1]
See also
References
- ^ Manutchehr-Danai, Mohsen (2000). Dictionary of Gems and Gemology. Springer-Verlag. p. 182. ISBN 978-3540674825.
| Crystalline | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cryptocrystalline | |||||||||
| Amorphous | |||||||||
| Miscellaneous | |||||||||
| Notable varieties |
| ||||||||
|
| This article about a specific mineral or mineraloid is a stub. You can help Wikipedia by expanding it. |