Corundum (var: Sapphire) (Bi-color Twin)

Corundum (var: Sapphire) (Bi-color Twin)Good Sapphire crystals are hard to find, twins are even more rare, but finding true bicolor twins is off the charts. Now I say true bicolor twins, because I dont really count a twinned crystal with varying degrees of blue as being multicolored necessarily. Theres no mistake with this piece as the color contrasting is about a defined as it gets for Sapphire. Ive seen twinned Sapphires with blue and yellow hues in the same crystal, but I dont know if I

The best of these specimens are simply the finest in the world for what they are

A textbook

doubly terminated "floater" shows a marvelous combination of sharp

the Morococala mine produced some of the largest and most spectacular Vivianite specimens in history

The luster is superior to most from Siglo XX

and specimen value is second

This piece features a few wonderful

The most interesting aspect of the piece is that the Apatite crystals show a beautiful color change when viewed in different lighting

NOTE: Even though Calcite is widespread in the world

there’s an area that resembles “pulled taffy”

or from a newer discovery

A good small cabinet matrix specimen with what would be considered a large crystal from Sferlun