first; i'm pretty sure its "sapphire" with two Ps. i don't have a dictionary handy but i'm almost positive.
since you are leaving the commentary unspecified, here are my thoughts;
magmatic- hmmmm... nice.
so i've noticed that you like to use the & symbol quite a bit. in some of your other ones i didn't mind, other than it seems the & or and at all feels a bit unnecessary(sp?).
i think this would flow along quite nicely without them.
in part four; i think bluish should be something different.
i mean why not just pick a color or combine a couple, blue-green, blue- gray, green-gray etc. etc. also when i think of sapphire i think of blue, their most common color.
part five; onward? don't think i've quite figured this one out yet. i would think "through", hmmm...
and the last part; should pearl be plural? or are we speaking of color?
anyway just a few thoughts.
you have a unique and calm voice my friend.