Labradorite

Emits a powerful light energy, from planetary sources and beings, to the soul of the user.  Used in facilitating astral projection.  Stone of transformation and utilization of the subconscious mind.  Promotes intellectual, intuitive, and mystical wisdom.  Stimulates brain, reduces anxiety and stress.  Clears, balances, and protects aura. This is an unusual stone filled with iridescence and rainbows which are only appreciated when the stone is held up to the light. This is thought to be a stone of mystery and magic, facilitating psychic development especially when placed on the third eye. This is an excellent stone to facilitate the journey into the unconscious and to other realms helping us to translate the knowledge gained on these voyages into every day reality. It is also said to bring other worldly knowledge into the human plane of existence. It is useful to stimulate brain activity, reduce anxiety & enhance digestion. Labradorite is said to be as useful to the physical eyes as it is to the third eye. It's other name is Spectrolite. This stone radiates like moonstone and carries fire like the opal. It teaches you how to concentrate and focus as when you put your attention into the stone it radiates and glows with beautiful hues.

A dull gemstone is not eye catching. Striking, vivid colors quickly catch the eye and raise the value of a gemstone. Australian Opals, with great fire, are costly, primarily because of their appealing colors. Even if the color of a mineral is vivid, it is still more valuable than a dull gemstone.

Minerals that have transparency provide a certain amount of clarity within the gemstone. The greater the clarity, the greater its value. Where a mineral has transparency there is the ability of seeing the crystalline structure, color, inclusions, phantoms etc that the crystal possesses. The greater the transparency, the more you can see, the more appealing it becomes, the greater its value.

Due to the stable chemical structure of minerals, luster is rarely a factor in mineral value, since the same type of minerals exhibit similar levels of luster. There are a few cases where a gemstone naturally exhibits a more impressive luster than other minerals of its kind. These exceptions give the gemstone a greater value.

Well-formed or unique crystals will raise the value of the gemstone, especially of large crystals. Nearly all natural crystals are deformed, some more than others. The larger a crystal, the more likely it is to be deformed.

Small, well formed, beautiful, gemstones are easier to find. Larger gemstones with similar properties are more expensive, because of their size. Fairly large gemstones, even of common minerals, will usually be of a higher value.

Gemstones of a mineral that are intrinsically different from normal gemstones of the mineral fall under this category. Properties such as abnormal color, pseudomorphs, twinning, and odd crystals give a gemstone extra value.

Crystals in a matrix are definitely more valuable than similar "freestanding" crystals. A matrix shows the original uniqueness of the mineral. Crystals in a matrix should always be selected over freestanding crystals.

Some minerals are not be considered attractive, but demand a high price because of their content, such as gold or silver.

Obviously, rare minerals are more costly than more common ones. Extremely rare minerals have a great value, even if they look ugly. The opposite is also true. Fairly common minerals, even if nicely colored and well formed have little value because of their commonness (unless they are exceptional).

Then there is always a spot for the exceptional gemstones. Gemstones that are magnificent, are always more valuable.