“Astorite” is a marketing term, or trade name for ore from the
Toltec (gold) mine in Colorado, formerly owned by John Jacob Astor.
It is primarily rhodonite, with various amounts of gold, silver
copper and associated minerals in the matrix.
Astorite has not been recognized as a mineral name by the American
Federation of Mineral Societies (AFMS).
If you search, you can occasionally locate some specimen pieces, or
slabs on the internet - Last I heard, the owner of the mine is Keith
McFarland, Silverton, CO.