Large Collectors Tourmaline / Elbaite Specimen 85322ea4f5aa7a207fa00efe7e737371 Technically it is a pseudomorph

Technically it is a pseudomorph of quartz

It is theorized that the development of these striated Pyrite specimens is due to the great amount of pressure exerted upon them

That unique structure allowed the creature to wield its massive jaws down like an ax

but there must have been at least several

Large Collectors Tourmaline / Elbaite Specimen 85322ea4f5aa7a207fa00efe7e737371 Technically it is a pseudomorphAlbite,Elbaite, also known as Tourmaline is a group of mixed crystals with the following major members, Elbaite, Dravite, Schorl, Buergerite, Tsilaisite, and Uvite. The general color range of the mineral's family are colorless, pink, green, blue, yellow, brown, and black. What distinguishes tourmalines are the three sided cross sections that are different than any other mineral.