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| Mineral: |
quartz |
| Gem: |
Montana agate (cryptocrystalline) |
| Size: |
10x14 mm & 10x14 mm |
| Carat: |
3.6 ct & 3.7 ct |
| Cut: |
rectangular cabochon(s) |
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| Origin: |
Montana |
| General Info: |
Agate (achates) was named from the river Achates, now the Drillo, in Sicily, where the stone was first identified. It is cryptocrystalline quartz (micro crystals) usually with a banded pattern (although not always). |
| Additional Information |
| Montana agate tends to have a very clear base with wispy brown/orange clouds or banding. It may also have dark mossy areas, including plumes or dentrites. It has a relatively distinctive color an patterning that is easy to spot once you have seen it. Cut by author. |
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