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Rare Fluorescent Minerals

 
Rare prehnite and pectolite from the Franklin Mine, NJ. The pectolite fluoresces pale orange SW and the prehnite fluoresces lavender-violet SW. A 2002 find of sphalerite with radiating willemite (the arrow points to the spot of easiest to see radiating crystals) and hydrozincite from the last remaining ore wall at the Trotter mine, Franklin. Collected at the site of the discovery of the first find of radiating willemite. Sphalerite fluoresces orange LW, willemite fluoresces green LW & SW (middle photo) and has a long-lasting phosphorescence. Hydrozincite fluoresces bright pale blue SW and less brightly LW.

Genthelvite yellow-tan crystals from Poudrette quarry, Mount Saint-Hilaire, Quebec, Canada. Genthelvite fluoresces green SW, lesser green LW, and orange-tan MW. A large example of rare, Sterling Hill mine genthelvite. It weighs 13.5 oz. It is shown under daylight, LW, and SW. It was discovered in late 2002 in a small area of the Passaic pit, now called the genthelvite trench. Most finds are one or two pinhead sized dots on the very hard to break host rock. This piece has a substantial area of this rare mineral. Sterling Hill genthelvite fluoresces green LW and barely glows green SW.

A rare contact Carlsbad twin crystal of albite with quartz crystals from Gilgit-Skardu Road, Gilgit district, Pakistan. The contact Carlsbad twin is a crystal that is actually two crystals that have grown side by side and are joined in the middle like siamese twins. The albite fluoresces an unusual blue-white SW rather than the typical deep red. It weighs 5.0 oz and is 2.9 x 2.0 x 1.9 inches Tremolite from Canaan, Connecticut. The tremolite fluoresces pale blue SW. It weighs 12.1 oz. and is 3.3 x 3.3 x 1.5 inches.

Crystals of sodalite, var. hackmanite, on winchite from Sar-e-Sang, Kokcha Valley, Badakhshan Province, Afghanistan. Hackmanite fluoresces orange LW and has strong tenebrescence - that is, it changes color when it is exposed to SW. It weighs 1 lb. 4.0 oz and is 5.0 x 3.3 x 2.0 inches A large piece with gemmy red and white tugtupite that fluoresces cherry red SW and red-orange LW and has a long-lasting phosphorescence. This was an early find from Kvanefjeld, Ilimaussaq, Greenland and is 4.5 inches long.

A septarian nodule slice from Southern Utah. It is a Cretaceous period mudball that cracked. Calcite formed in the cracks. It has been sliced and one side is polished. It fluoresces pale blue LW & SW. A rare yellow fluorescing willemite (known to collectors as beta-willemite) made up of many small sparkling crystals with calcite from Sterling Hill mine, Ogdensburg, New Jersey. Beta-willemite fluoresces yellow SW. It weighs 16.0 oz. and is 4.5 x 5.5 x 1.5 inches.

Red gemmy willemite with patches of fluorapatite. The large area on the left is 7/8ths of an inch long and this piece weighs 3.0 oz. A beryl (var. aquamarine) crystal on albite crystals with muscovite from Shigar Valley, Skardu, Baltistan. The albite fluoresces dark pink SW. It weighs 3.5 oz and is 2.5 x 1.8 x 1.5 inches.

An unusual four-color polished slice of microcline, var. amazonite, with reddish fluorapatite, willemite, calcite, and augite from the Mill site, Franklin. This amazonite is blue-green and fluoresces gray-blue SW. The fluorapatite fluoresces burnt orange SW, the calcite fluoresces orange-red SW, and the willemite fluoreseces green SW. Here is an underappreciated fluorescent mineral from the Noble pit of the Sterling Hill mine. Most of it is now buried. It is scapolite. This piece has massive light grey scapolite and calcite. The scapolite fluoresces crimson red SW and the calcite fluoresces a bright orange-red SW. The host rock is incredibly tough to break. It takes two strong men to break off a few pieces.

Calcite from the Franklin mine occasionally turns a beautiful salmon color. This is from the Mill site in Franklin. It fluoresces an exceptionally bright orange-red SW. The closer to the ore body the calcite is, the brighter it glows. Salmon calcite from the Sterling Hill mine in Ogdensburg was unheard of several years ago. Digging in the wall at the southeast corner of the Passaic pit in 2006 exposed some of the prettiest salmon calcite ever found. It fluoresces orange-red SW, but is not as bright as the Franklin material.

A white matrix with pink, radiating crystals of baratovite and black blades of aegerine from Dara-I-Pioz, Alai Range, Tien Shan, Tadzhikstan. The baratovite fluoresces bright pale blue SW. Purple amethyst-looking Franklin fluorite crystals sparsely disseminated in limestone and feldspar which fluoresces cherry red SW. The fluorite barely fluoresces SW and not at all LW, but there is a light blue white glow around the crystals SW. This was found at the Trotter dump of the Franklin mine.

New Jersey Fluorescents, page 1

More New Jersey Fluorescents, page 2

Even More New Jersey Fluorescents, page 3

New Jersey and Other Fluorescents, page 4

Foreign Fluorescents, page 5

Fluorescent Links, books, etc, page 6

Rare New Jersey Fluorescents, page 7

Fluorescent Apatites, page 7a

Fluorescent Apatites, page 7b

Fluorescent Calcites, page 7c

Fluorescent Calcites, page 7d

Fluorescent Minerals for Sale, page 9

Fluorescent Minerals for Sale, page 9a

Fluorescent Minerals for Sale, page 9b

Fluorescent Minerals for Sale, page 10

Fluorescent Minerals for Sale, page 10a

Fluorescent Minerals for Sale, page 11

Fluorescent Minerals for Sale, page 11a

Fluorescent Minerals for Sale, page 12

Fluorescent Minerals for Sale, page 12a

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