Helvite
Mn4Be3(SiO4)3S
wdx 
edx
thin film 
thin foil
xrf
edx
thin film
thin foil
xrf
Location
Tongbei, Fujian Prov. China
Dana Class
76.02.04.01
Strunz Class
09.FB.10
| Element | WT% |
| Zn | 6.67% |
| S | 7.03% |
| Si | 15.39% |
| Mn | 31.92% |
| O | 38.98% |
| Compound | WT% |
| ZnO | 8.31% |
| SO3 | 17.55% |
| SiO2 | 32.92% |
| MnO | 41.22% |
