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 a fine patette of natural colors |
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| colors available | |
green green-yellow green-orange yellow yellow-orange green-brown yellow-brown orange-brown brown |
| family/species: |
tourmaline, dravite | |
| properties: |
RI=1.624 (+/-0.005) and 1.644
(+/-0.006) DR SG=3.06 (+/- 0.05) dispersion=0.017 hardness=7-7.5 note: suitable for use in jewelry |
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| treatments: |
usually none |
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| important
information |
|
natural tourmaline which is only
occasionally treated to improve color (see policy on treatment
disclosure) |
| cuts: |
calibrated up to 5mm all standard cuts and free sizes |
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| rough: |
generally available in clean
material to
cut sizes 4mm and under; bigger pieces occasionally available - please
contact us for current stock |
|
| mining: |
found in tanzania (landanai, morogoro, umba valley) and kenya (taita-taveta) view photo gallery | |
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to place an order or if you have any questions, please feel free to contact us or email us at info@colorfirst.com