Copper ("Spinel"-twins and crystals) Vivianite It's incredibly rare to find

It's incredibly rare to find good matrix specimens of Betrandite

crystallized

From the "Alpine-type" collection of my father

This particular piece features a lovely

This particular specimen

Copper ("Spinel"-twins and crystals) Vivianite It's incredibly rare to findThis beautiful specimen of Native Copper features a pleasing combination of defined "Spinel" twins and well formed crystals intergrown to create a display quality miniature. The piece is highlighted at the top by a wonderful dodecahedral crystal of Copper with both smooth well formed positive faces and skeletal or "hoppered" negative faces sitting atop an elongated group of "Spinel" twins which branch out along the length of the specimen. Each of the