Gemstones....Gemstones....

So, the start of the website is also the start of minor frustrations! (Not major to anyone but me, that is!) Apparently you can't find certain gemstone names online...I have a milky pale blue opaque gem I CANNOT find the gem name for....So I've come to the conclusion I need a gemstone compendium of sorts...Especially since i can't remember the name of the lovely maroon and goldenrod stone I used last night in a pretty three-tiered necklace...But, I will get better at this! Promise! :D