Examples of Unusual Crystals and Gemstones
The table below includes general information about, and images of, some lesser-known crystals and gemstones and forms of popular crystals.
This can be used to look-up a crystal that you have heard of and would like to see a picture and some general information about. Alternatively, if you're interested in crystals but not sure about the different types and which you might perfer, scroll down to see the descriptions and images.
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Alluvial Quartz
 The photograph is of a sample of alluvial quartz polished on the upper side only. |
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| Colour: | The quartz itself is clear, near colourless, though background and any inclusions may give the suggestion of other colours. |
| Material Structure: | Trigonal (because alluvial quartz is a form of quartz) |
| Example of source: | Africa |
Blue Tigers Eye
 The photograph is of a blue tiger's eye tumble stone. |
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| Colour: | Blue, typically banded such that very dark shades of blue alternate with lighter brighter blues |
| Material Structure: | Trigonal |
| Example of source: | Africa |
Moldavite
 The photograph is of a small 'natural', i.e. unpolished, sample of moldavite. |
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| Colour: | Green, mainly dark green unless viewed in very thin sections |
| Material Structure: | |
| Example of source: | Ceczh (but of extra-terrestrial origin) |
Red Tigers Eye
 The photograph is of a red tigers eye tumble stone. |
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| Colour: | Ranges from dark red through to brighter shades of red or red / brown |
| Material Structure: | Trigonal |
| Example of source: | Africa |
Spirit Amethyst
 The photograph is of a natural spirit amethyst crystal. |
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| Colour: | Pale purple, often with darker purple tips |
| Material Structure: | Trigonal (because amethyst, incl. spirit amethyst, is a form of quartz) |
| Example of source: | Africa |
Tangerine Quartz
 The photograph is of a polished tangerine quartz point. Although quartz and polished quartz points are not unusual, this opaque orange colour of quartz is uncommon. |
Colour: | Orange |
| Material Structure: | Trigonal (because tangerine quartz is a form of quartz) |
| Example of source: | Africa |
For similar information about more common crystals go to the index of popular crystals.
