- About Gem Market TM
- Index by subject and keyword
- Our mailing policy
- Our returns policy
- How to pay us
- notes on identifying gems
- business (related websites)
about Gem MarketTM
about Montana sapphires
about OPL Spectra
| Gem MarketTM |
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This site is intended to support our sales through eBay, and as a framework for some other things of possible interest.
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about Gem MarketTM about Montana sapphires |
about OPL Spectra |
 about specific gravity |  about refraction |
 a gemmological spreadsheet (100k) |