| Locality type: | Mine |
| Classification |
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| Species: | Schorl |
| Formula: | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Confirmation |
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|
| Validity: | Believed Valid |
| References |
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| References: | Galbraith, F.W. (1947), Minerals of Arizona, AZ Bur. Mines Bull. 153: 400. |
| Data |
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| Mineral Data: | Click here to view Schorl data |
| Locality Data: | Click here to view Twin Buttes Mine (Twin Buttes Open Pit Mine), Twin Buttes, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mountains, Pima Co., Arizona, USA |
| Nearest other occurrences of Schorl |
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|
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| 22.6km (14.0 miles) | | ⓘJackson Mine group (McCleary group; Old Baldy Copper Mine; Rosa Mine; Hickory; Decatur), Jackson Canyon, Old Baldy Mining District, Pima Co., Arizona, USA |
| 66.4km (41.3 miles) | | ⓘHolland Mine, Duquesne Gulch, Nash Mines group (Duquesne-Washington group), Washington Camp-Duquesne Mining District, Patagonia Mining District, Patagonia Mountains, Santa Cruz Co., Arizona, USA |
| 66.9km (41.6 miles) | | ⓘWashington Camp-Duquesne Mining District, Patagonia Mining District, Patagonia Mountains, Santa Cruz Co., Arizona, USA |
| 80.6km (50.1 miles) | | ⓘJohnny Lyon Hills, Cochise County, Arizona, USA |
| 97.5km (60.6 miles) | | ⓘTarr Mine (Tar Mine; Tarr property; Tarr Copper Mine; San Pedro Mine; Jameson and Ward Mine), Tarr Wash, Black Hills, Mammoth Mining District, Pinal Co., Arizona, USA |
