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]
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