Youngite is a variety of agate that is provided a local name for agatized limestone breccia clasts rehealed with bluish-gray chalcedony and drusy quartz. This chalcedony and quartz usually also form around the exterior and lines the vugs of the material. It comes from one location only and is no longer mined, making this rare. Youngite is only found near Guernsey, in Eastern Wyoming. The most notable locale that produced some excellent specimens is the Hartville Uplift. Although specimens are still available from time to time, the Wyoming locations are now closed.
Youngite is a fluorescent rock and can be found in ultra violet or black light displays at many museums. The chalcedony/drusy quartz glows green under Ultra Violet (UV) or black light. The jasper center of this material is called brecciated due to its angular fragmentation. The jasper center varies in color from a light tan, to a pretty peach, brown, reddish, salmon and variations of these colors. The material is very hard and is used in making cabochons and other jewelry pieces. It polishes well and makes excellent display specimens for the collector.
Item # YWY02145256
RARE Old Stock XL Youngite Display Slab
Deep Salmon, Reddish Brown and shades to light pink Jasper accentuate this 1/2" thick old stock specimen display slab. This piece has been coated with a sealer on both sides but does not coat the botryoidal vugs. This piece was cut on 3 sides. We were going to lap this piece to remove the sealer and put a nice polish on it, but, with so many rocks and so little time, we decided to sell this RARE XL Youngite slab "as is". This is old stock from Platte County, Wyoming. It is extremely rare to find a specimen this large since mining was stopped years ago.
This specimen weighs 23.9 oz or 1.49 lbs (679g) and measures 6.9 x 6.5 x 0.56 inches (17.7 x 16.6 x 1.43cm)
Old Stock Polished Face Youngite
Deep Salmon and Reddish Brown Jasper dominate this super solid old stock specimen. This piece is from our personal collection that we have had for many years. This piece was cut on 2 sides, polished on one side many years ago by a nice lady who ran an old rock shop close to Casper, Wyoming
This specimen weighs 10.4 oz or 0.65 lbs (296g)
and measures 2.6 x 2.6 x 2.3 inches (6.7 x 6.6 x 5.9cm)
Rough Hartville Specimen of Youngite
Nice brecciated faces with different patterns from each angle. Darker pink colors to dark salmon. This makes an excellent free standing display or will make some beautiful cabochons. From the Hartville lift in Wyoming.
This specimen weighs 9.1 oz or 0.57 lbs (259g)
and measures 3.9 x 2.6 x 2 inches (9.9 x 6.7 x 5.3cm)
Rough Hartville Specimen of Youngite
Nice brecciated faces with different patterns from each angle. Softer pink colors to light salmon. This makes an excellent free standing display or will make some beautiful cabochons. From the Hartville lift in Wyoming.
This specimen weighs 16.2 oz or 1.01 lbs (459g)
and measures 4 x 3.1 x 2.7 inches (10.2 x 8 x 6.9cm)
Extremely Rare Old Stock 3.4" Sphere and 6.8" Display Base Specimen of Youngite
We procured this amazing specimen from an old timer in Oregon who said this was the best sphere he ever made. It has a satin finish polish on the sphere (which can be polished to a more brilliant shine with the right equipment) and it was the best finish he could obtain because of all the large vugs in the piece. This is a superb collection piece of a free floating
piece of Youngite for the base 6.8 x 5 x 1.8" (17.4 x 12.7 x 4.7 cm) and a large 3.4" (86mm) sphere with nice brecciated faces with different patterns from each angle. It has light pink colors to dark salmon. The vugs are simply amazing! The deep botryoidal formations in the depths are visible from three different vugs which connect to the same cavern...simply
You will never find another specimen like this...it is absolutely a
One of a Kind Work of Art
This sphere weighs 24.2 oz or 1.51 lbs (686g)
and measures 3.4 inches (86 mm) in diameter
The Base weighs 33.9 oz or 2.12 lbs (962g)
and measures 6.8 x 5 x 1.8 inches (17.4 x 12.7 x 4.7 cm)
Combined weight of these two items is 58.4 oz or 3.65 lbs (1657g) Shipping will be in a USPS Large Flat Rate Priority Mail package. Customs fees may be incurred for International buyers Estimated shipping weight will be 5 lbs (2.7 Kilograms) which may be over some countries international shipment limits, check your countries laws and customs fees you may have to pay, before making purchase.