This is a large Herkimer Diamond crystal with many metaphysical properties.
Bright rainbows show from many angles. A rainbow occurs when light is refracted by the prismatic effect of inclusions. Also called color veils, metaphysically inclined persons believe a rainbow crystal will bring rainbows into ones life; assisting in dealing with negativity. Crystal healers maintain they increase awareness that love is within all moments of life's experiences. Rainbows show best in bright light !
Many of the inclusions are self healed fractures. At some point during its growth, fractures occurred and the crystal continued growing, sealing over the fracture. Self healed crystals are considered powerful healers because of their ability to have healed themselves.
Other internal inclusions in quartz, occur when a solid, liquid, or gaseous foreign body encloses itself in the quartz during the growth process. In the case of this particular Herkimer, iron oxide and black hydrocarbon (anthraxolite) were present. The black hydrocarbon was trapped inside in a powdery form, and gives the Herkimer a rich smoky look.
Iron oxide is found both inside in a healed fracture, as well as externally. Metaphysical healers these quartz crystals 'golden healers'. As it's name suggests, it is used in all healing situations, including the spiritual.
This is a complete double terminated Herkimer Diamond with blemished points. One point has a hopper mark imprint (seen below in the top image).
The other point terminated in a vug not quite big enough to allow it to completely form. The attachment mark is best seen in the image above. Other images show additional matrix marks are present as well.
While this Herkimer Diamond is D grade because of the bunged points, there are several large smooth facets, or faces that feel impressive. The striation marks on some can be seen in several of the images.
It's large size makes it a great fit for holding in your hand.
Most times it's not the incredible AA grade Herkimers that healers look for. It's the interesting inclusions and other attributes that those interested in the metaphysical look for.
This large Herkimer Diamond crystal certainly fills the bill !