Minerals | By_Name | By_Class | Silicates | EUCRYPTITE

EUCRYPTITE Specimens



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# ECR-5, $60.00 Sold!
Dims: 6.4 x 3.5 x 1.1" ( 15.9 x 8.9 x 3.0 cm) ....Wt: 6.35 oz. (180g) .... Loc: Parker Mountain, Stafford, New Hampshire, USA
This specimen has two bands of eucryptite (easily identified by their red glow under shortwave UV), separated by a band of a mineral that looks identical under visible light, but which does not fluoresce. There are several other minerals present, including quartz, feldspar, and mica. The fluorescent image does not show the deep red glow correctly. I did not detect any other florescence.
# ECR-4, $90.00 Sold!
Dims: 5.8 x 4.5 x 2.6" ( 15.1 x 11.5 x 6.7 cm) ....Wt: 3 lbs 1 oz. (1390g) .... Loc: Parker Mountain, Stafford, New Hampshire, USA
Another nice eucryptite specimen which my UV lamp and camera do not do justice to. They actually glow very nicely with a deep red for the eucryptite (the bulk of the specimen), plus an intense green for the scattering of willemite on the specimen. The specimen also contains a great deal of feldspar and mica, plus some unidentified black mineral. Eucryptite is a "must-have" mineral for a florescent specimen collector.
# ECR-3, $130.00 Sold!
Dims: 5.8 x 5.5 x 2.5" ( 15.0 x 14.0 x 7.5 cm) ....Wt: 4 lbs. 2 oz. (1875g) .... Loc: Parker Mountain, Stafford, New Hampshire, USA
This specimen is almost entirely eucryptite by weight, although one side is covered by a layer of feldspar and a scattering of mica crystals. Under short-wave ultraviolet, the eucryptite glows a deep and bright red, which does not image well with my camera. The eucrytite is outlined by a thin layer of willemite, which glows an intense green, which ALSO does not show up on this camera. There is no "blue" florescence - the camera has captured the blue reflection of the UV lamp. This is a great specimen for a short-wave UV cabinet.
# ECR-2, $36.00 Sold!
Dims:2.4x1.9x0.5" (6.1x4.8x1.3 cm) . . . .Wt: 2.4oz. (66g) . . . .Loc:Parker Mtn. Mine, Center Stafford, New Hampshire
This is a massive specimen of eucryptite. Only cleavage faces are available for study. There is no matrix with this specimen, but there is a small amount of muscovite mica attached. This specimen fluoresces dark pink in short wave ultraviolet light.
# ECR-1, $36.00 Sold!
Dims: 2.0 x 1.6 x 1.0" (5.0 x 4.2 x 2.6 cm) .... Wt: 1.6 oz. (44 g) .... Loc: Londonderry Quarry, Western Australia, Australia
This specimen consists of an irregular, shapeless chunk of massive Eucryptite. It shows no crystal form whatsoever and actually somewhat resembles a piece of feldspar. It has a milky-white color with some colorless patches and is generally dimly translucent, though the colorless areas show some dim transparence. Its luster is generally dull and waxy, though again, the colorless areas tend to show a brighter, nearly vitreous shine. There is no host rock present.
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