Alleghanyite from
Bald Knob deposit, Bald Knob, Sparta, Alleghany County, North Carolina, USA
| Locality type: | Deposit | |
| Classification | ||
|---|---|---|
| Species: | Alleghanyite | |
| Formula: | Mn52+(SiO4)2(OH)2 | |
| Comments: | Alleghanyite and Mn-rich calcite occur in alternating lenses in a carbonate paragenesis. These lenses may not be more than one millimeter wide, but can be up to 15 mm wide. The individual rounded alleghanyite grains are up to 5 mm in diameter. | |
| Habit: | rounded grains | |
| Colour: | brownish pink | |
| Confirmation | ||
| Validity: | Valid - Type Locality | |
| Associated Minerals: | ||
| Associates: | Manganese-bearing Calcite Manganhumite Sonolite Tephroite | |
| Associated Minerals Based on Photo Data: | ||
| Kellyite | 8 | |
| Kutnohorite | 8 | |
| Jacobsite | 5 | |
| Calcite | 4 | |
| Data | ||
| Mineral Data: | Click here to view Alleghanyite data | |
| Locality Data: | Click here to view Bald Knob deposit, Bald Knob, Sparta, Alleghany County, North Carolina, USA | |
| Photo Gallery | View Gallery (5 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 396 | |
| Long-form Identifier: | 1:3:396:4 | |
| GUID (UUID V4): | 0 | |
| References | ||
Ross, Clarence S., Kerr, Paul F. (1932) The manganese minerals of a vein near Bald Knob, North Carolina. American Mineralogist, 17 (1) 1-18 | ||
Bald Knob deposit, Bald Knob, Sparta, Alleghany County, North Carolina, USA