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Elbaite from
Dunton Gem Quarry, Newry, Oxford County, Maine, USA

Locality type:Quarry
Classification
Species:Elbaite
Formula:Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:Beesley (1975) was the first to discover that Dunton Quarry untreated elbaite fluoresces light chalky blue in short wave ultraviolet light while heat treating intensifies the fluorescence. Heating may turn Dunton elbaite colorless. Fluorescent tourmaline is rare, but has been observed several localities in Maine, Brazil, and Mozambique and elsewhere. Maine tourmaline appears to have the strongest fluorescing pink and green tourmaline with the pink tourmaline fluorescing brighter than green tourmaline. Inclusions are distinctive in Newry gem tourmaline and unusual inclusions have three phases. Beesley provided illustrations of the inclusions in Dunton elbaite and suggested that these could also be used to verify the origin of the Newry tourmaline from mislabeled specimens.
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
References
References:Beesley, C., 1975, Dunton Mine Tourmaline: An Analysis, Gems and Gemology,v. 15, p. 19-24.
Associated Minerals Based on Photo Data:
Albite13 photos of Elbaite associated with Albite at this locality.
Eosphorite5 photos of Elbaite associated with Eosphorite at this locality.
Muscovite5 photos of Elbaite associated with Muscovite at this locality.
Lepidolite4 photos of Elbaite associated with Lepidolite at this locality.
Zigrasite3 photos of Elbaite associated with Zigrasite at this locality.
Quartz2 photos of Elbaite associated with Quartz at this locality.
Hydroxylapatite1 photo of Elbaite associated with Hydroxylapatite at this locality.
Cookeite1 photo of Elbaite associated with Cookeite at this locality.
Rose Quartz1 photo of Elbaite associated with Rose Quartz at this locality.
Watermelon Tourmaline1 photo of Elbaite associated with Watermelon Tourmaline at this locality.
Data
Mineral Data:Click here to view Elbaite data
Locality Data:Click here to view Dunton Gem Quarry, Newry, Oxford County, Maine, USA
Photo GalleryView Gallery (92 photos)
Nearest other occurrences of Elbaite
0.1km (0.1 miles) Kinglet Prospect, Newry, Oxford County, Maine, USA
0.2km (0.1 miles) Crooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA
0.3km (0.2 miles) Nevel Quarry (Twin tunnels; United Feldspar Quarry), Newry, Oxford County, Maine, USA
7.7km (4.8 miles) Black Mountain Quarry (Black Mountain pegmatite), Rumford, Oxford County, Maine, USA
21.9km (13.6 miles) Songo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
24.5km (15.2 miles) Emmons Quarry (Uncle Tom Mountain Quarry), Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
28.5km (17.7 miles) Outback prospect (Gross prospect), Greenwood, Oxford County, Maine, USA
28.8km (17.9 miles) Noyes Mountain Quarry (Harvard Quarry), Greenwood, Oxford County, Maine, USA
28.8km (17.9 miles) Morgan Quarry (Upper Noyes Mountain Quarry; Upper Harvard Quarry), Greenwood, Oxford County, Maine, USA
29.6km (18.4 miles) Waisanen Quarry (Tamminen-Waisanen Quarry), Greenwood, Oxford County, Maine, USA
 
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