Color Change Sapphire (multiple colors)There are not many gems in the world that exhibit a color change effect, where the gem will display a different color based upon the temperature of the lighting in which it is viewed. A true favorite of many collectors is the rare color change Sapphire. Some of the best examples of the exotic Sapphires come from Sri Lanka. This stone shows a great color change with a steel gray lilac tone under 5000K LED lighting which shifts to a beautiful pinkish

highly lustrous prism of Vivianite is lying in a semi-vug shaped indentation of the red altered sandstone matrix

6 cm across

and some are even doubly terminated as you rotate the piece in your hand

These are very well-formed crystals and are only very slightly skeletal or hoppered

The most important aspect of this piece to me is the fact that NONE of the crystals are repaired

this is one of the most famous Trap Rock quarries in New Jersey and is probably most famous for its amazing and unique Prehnite casts after Anhydrite (sometimes called "fingers" or "snakeheads")

monoclinic crystals of Scorzalite with Quartz on matrix

and I don’t speak Russian

well-formed faces and a pleasing yellow-green hue with moderate translucency

you can’t afford to miss out on this one

The fact that the stone is over 1 carat makes it a collector quality gemstone

the richer colored areas are a textbook example of the “Blood Vessel Opal” from this locality where the iron oxide inclusions have formed thin lines near the surface to give it an almost organic appearance