Locality type: | Occurrence |
Classification |
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Species: | Opal |
Formula: | SiO2 · nH2O |
Confirmation |
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Validity: | Believed Valid |
Data |
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Mineral Data: | Click here to view Opal data |
Locality Data: | Click here to view Guimarãesite occurrence, Piauí valley, Taquaral, Itinga, Minas Gerais, Brazil |
Data Identifiers |
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Mindat Occurrence Record ID: | 973717 |
Long-form Identifier: | 1:3:973717:4 |
GUID (UUID V4): | ece961be-d09a-4334-a7a6-e562529297c4 |
Nearest other occurrences of Opal |
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4.1km (2.6 miles) | ⓘTaquaral, Itinga, Minas Gerais, Brazil |
References |
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Chukanov, Nikita V., Atencio, Daniel, Zadov, Alexander E., Filho, Luis A.D. Menezes, Coutinho, Jose M.V. (2007) Guimarãesite, a New Zn-dominant Monoclinic Roscherite-group Mineral from Itinga, Minas Gerais, Brazil. New Data on Minerals, 42. 11-15 |