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The Crystal Guide

Sub Categories:
Standard Glossary
This glossary of terms will help decipher some of the more esoteric ones you will come across in the crystal energy field.
Metaphysical Crystal Glossary
This section defines the words are used to describe the Crystal in terms of their metaphysical property, the symbolic meaning, and what the Crystal form does.
Metaphysical Properties Glossary
The metaphysical properties glossary provides details on the practical use of crystals and minerals for healthy living and defines their energetic uses.

There are no fixed standards to determine the value of minerals. An experienced person can guess a specimens price range by gathering certain information about the specimen. Certain unique properties will set it aside from other specimens of the same type.

Properties that set one specimen apart from another are:

  • its colour and the intensity of colour
  • the transparency of the crystal
  • the lustre
  • the formation of the crystal
  • its size
  • anomalies
  • the presence of a matrix
  • demand
  • its rarity
  • exceptional specimens
  • damage free specimens

Colour and Intensity

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


Minerals that have transparency provide a certain amount of clarity within the specimen. The greater the clarity, the greater its value. Where a mineral has transparency there is the ability of seeing the crystalline structure, colour, 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.

Formation of Crystals

Well-formed or unique crystals will raise the value of the specimen, 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, specimens are easier to find. Larger specimens with similar properties are more expensive, because of their size. Fairly large specimens, even of common minerals, will usually be of a higher value.


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


Specimens of a mineral that are intrinsically different from normal specimens of the mineral fall under this category. Properties such as abnormal colour, pseudomorphs, twinning, and odd crystals give a specimen extra value.

Presence of a Matrix

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 coloured and well formed have little value because of their commonness (unless they are exceptional).


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

Damage free

Specimens that have no damage are of more value then ones that have chips, nicks etc.

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