TY  - JOUR
T1  - Observations upon Some Gems Similar to the Tourmalin; By Mr. Benjamin Wilson, F. R. S.
JF  - Philosophical Transactions (1683-1775)
VL  - 52
SP  - 443
EP  - 447
PY  - 1761/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1761.0069
M3  - doi:10.1098/rstl.1761.0069
AU  - Wilson, B.
ER  -