Corundum (var: Sapphire) (doubly terminated "floater" crystal) caddisfly the word Knappenkees is possibly

the word Knappenkees is possibly a reference to the Lappenkees (Lappen Glacier)

and they have beautiful reflective faces

these are not the finest Pyromorphite specimens

The beetles look like they're marching almost like ants

This specimen is a very good representation of the material as it features several translucent

Corundum (var: Sapphire) (doubly terminated "floater" crystal) caddisfly the word Knappenkees is possiblySome of the finest quality crystals of Sapphire in the world are those from various localities in Sri Lanka. The combination of excellent sharp, euhedral crystals along with a beautiful range of colors puts them in the upper tiers for Sapphire crystals from anywhere. This piece is a fine quality, very sharp (not rounded or water worn), rather lustrous, well formed, euhedral, hexagonal, striated, doubly terminated "floater" crystal with a lovely blue