Latitude & Longitude (WGS84):
4° South , 41° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~40km
Locality type:
Köppen climate type:
No description has been added for this locality. Can you add one?
Regions containing this locality
South America Plate | Tectonic Plate |
South America | Continent |
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
ⓘ Opal Formula: SiO2 · nH2O Reference: Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 70). |
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
---|---|---|---|
ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
List of minerals arranged by Dana 8th Edition classification
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
---|---|---|---|
Si Tetrahedral Frameworks - SiO2 with H2O and organics | |||
ⓘ | Opal | 75.2.1.1 | SiO2 · nH2O |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Opal | SiO2 · nH2O |
O | Oxygen | |
O | ⓘ Opal | SiO2 · nH2O |
Si | Silicon | |
Si | ⓘ Opal | SiO2 · nH2O |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Sauer, J.R. (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 70).
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