So my vendor has some really cool looking chalky pieces that have brown opal in the middle. She calls them "Menalite". Checking it out on Google, I see that a lot of folks sell these, also quoting the same material and name of Menalite. Problem is, I cannot find Menalite in the mindat.org database, meaning that this is a name someone made up or it is possibly a new, yet to be IMA approved. Does anyone have any info on this?