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4AA33 - Leucite - $ 95 SOLD Vesuvius, Italy thumbnail, 2.5 x 2.5 x 2.5 cm
A large floater xl of leucite showing excellent form
D06-40 - Orthoclase pseudo. after Leucite - $ 400 SOLD Oberwiesenthal, Germany small cabinet, 6.4 x 5.7 x 5.5 cm
A wonderfully stereotypical, complete-all-around, 360-degree, pseudomorphic trapezohedral crystal comprising what must once have been a beautiful garnet-shaped Leucite crystal now replaced by orthoclase of the consistency and visual stunningness of sidewalk cement. Well, admittedly that is not a beautiful advertisement of color, but it IS a beautiful piece for symmetry and a really nifty locality specimen.
D10-78 - Leucite - $ 750 Magnet Cove, Hot Spring County, Arkansas miniature, 5 x 4.4 x 4.3 cm
This large leucite crystal is the size of a golfball, and is complete all around. It looks like a garnet, at first glance. But , it is instead the largest leucite I have seen from the USA. I am told that these were found in Magnet Cove, but only rarely and prior to the 1950s. It is a very important, but seldom seen, American specimen ex. Ted Johnson collection.
MD-120540 - Leucite - - Archived Mt. Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy thumbnail, 2.4 x 2.2 x 2.2 cm.
2.4 x 2.2 x 2.2 cm. A fine crystal of this potassium aluminum silicate from the TYPE LOCALITY, the volcanic Mt. Vesuvius (leucites form from cooling lava, taking on this trapezohedral form). Yes, the same Mt. Vesuvius that formed this leucite crystal famously destroyed Pompeii in 79 AD.
MD-19851 - Leucite - - Archived Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy small cabinet, 5.2 x 5.0 x 5.0 cm
A VERY LARGE, well-crystallized and complete all-around trapezohedron crystal of leucite pseudomorphing analcime from the TYPE LOCALITY of Monte Somma, Vesuvius, Naples Province, Italy. Very uncommon from this locality. Leucite has the same chemical composition as analcime, except that leucite has no water molecules. 5.2 x 5.0 x 5.0 cm
MD-206343 - Leucite, Analcime - - Archived Liguria, Italy miniature, 3.7 x 2.8 x 2.7 cm.
3.7 x 2.8 x 2.7 cm. This "soccer ball" pseudo-trapezohedral crystal in matrix is a crystal of analcime (Hydrated Sodium Aluminum Silicate) that has been completely pseudomorphed by leucite (Potassium Aluminum Silicate), with the potassium replacing the sodium. It looks much sharper in person - like a crystal model or a geodesic dome. Old classic specimen from the Elling Collection.
MD-39143 - Leucite, Augite - - Archived Roccamonfina, Roccamonfina Volcanic Complex, Caserta Province, Campania, Italy thumbnail, 2.5 x 2.3 x 1.8 cm
Leucite is a relatively rare feldspathoid, and this is a classic for the species. The trapezohedral crystal is sharp, the color is good, and the luster very good. And the coup de grace is an Augite crystal embedded in the Leucite crytal that for all the world will remind you of Snoopy. Too cool. 2.5 x 2.3 x 1.8 cm
MD-70404 - Kaolinite, Leucite - - Archived Fosso Cancherone, Sant'Anastasia, Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy miniature, 4.2 x 4.1 x 3.6cm
The locality at Mt. Somma is actually the type locality for Leucite and one myriad of other species. The mountaind itself is an igneous mound that shows what remains when the cataclysmic eruption of Mt. Vesuvius took place in 79 A.D. which destoyed the city of Pompei. This historic specimen shows a great pseudomorph of reddish tan Kaolinite clay that replaced and maintained the shape of trapezohedra of Lecuite. The fact that this piece one belonged to the great gemologist George F. Kunz (Kunzite) is simply amazing, because you don''t see Kunz labels on the market very often. The label states that he acquired the piece in 1902. A very interesting and unique pseudomorph from this incredibly old and well documented European locality. 4.2 x 4.1 x 3.6cm All Content and Design ©1996-2010 The ArkenstonePowered by http://mineralwebsites.comBy-species Galleries | ||||||||||||||||||
