The official GemStone IV encyclopedia.
Example log of glowing core upper end (and it still could be higher).
As you sing, you feel a faint resonating vibration from the glowing core in your hand, and you learn something about it... This is a small item, under a pound. In your best estimation, it's worth about 64,000 silvers. Roundtime: 5 sec.
- And even more definitively.
You begin your musical chant for Purification Song... Your spellsong is ready. >cast my core You sing a melody, directing the sound of your voice at a faintly glowing core. Your song misfires. Sing Roundtime 3 Seconds.