SP
SPADAITE
SPANGOLITE
SPENCERITE
SPERRYLITE
SPERTINIITE
SPESSARTINE
SPHAEROCOBALTITE
SPHALERITE
,
with photos
SPHENISCIDITE
SPINELLE
,
with photos
SPIONKOPITE
SPIROFFITE
SPODIOPHYLLITE
SPODIOSITE (?)
SPODUMENE
,
with photos
SPURRITE