#76972 +
(480)
<slac`> there's this mineral ( formula: (Mg,Fe)7Si8O22(OH)2 ) which was found in Cummington, MA. <slac`> it is therefor called: Cummingtonite <[Ci]CougarFou> that sounds like a dangerous mineral. I bet you have to wash your hands throughly after handling it.