| | Description | |
| Type Locality: | Unnamed granite pegmatite, Piauí Valley, Taquaral, Itinga, Minas Gerais, Southeast Region, Brazil is the type locality for Guimarãesite | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | IMA website | | Data | |
| Mineral Data: | Click here to view Guimarãesite data | | Locality Data: | Click here to view Unnamed granite pegmatite, Piauí Valley, Taquaral, Itinga, Minas Gerais, Southeast Region, Brazil | | Photo Gallery | View Gallery (4 photos) |
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