All pictures are taken in both natural/outdoor light, and indoor artificial light to showcase the various hues of the stone,  depending on light source 
 
Naturally Biterminated Clear Quartz Crystal with Specularite phantom. Specularite is a variety of Hematite known for its metallic luster, in this case, naturally forming into a phantom mountain. This particular piece has a beautiful rainbow near the top termination. 
 
Metaphysically, Specularite is associated with anchoring, protective, and grounding energies.