1802
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Jaspers
Jasper is an opaque variety of chalcedony, which is a microcrystalline variety of the mineral Quartz. Opaque
means that neither light nor images pass through. Microcrystalline quartz in its pure form is semitransparent.
When a small amount of impurities or foreign materials are added to microcrystalline quartz, the color changes
and its ability to transmit light decreases. Jasper contains enough impurities and foreign material to make it
opaque.
It often contains an abundance of impurities, and therefore some regard it as a rock instead of a mineral. Jasper
is usually associated with brown, yellow, or reddish colors, but may be used to describe other opaque colors of
Chalcedony such as dark or mottled green and orange. Some forms of Jasper are banded, and these banded
Jaspers may appear similar to Agate, but unlike Agate they are opaque. When Jasper is dull and lacking
interesting colors or patterns, it is not Jasper but rather Chert.
Jasper is an opaque rock of virtually any color stemming from the mineral content of the original sediments or ash.
Patterns arise during the consolidation process forming flow and depositional patterns in the original silica rich
sediment or volcanic ash. Hydrothermal circulation is generally thought to be required in the formation of jasper.
The classification and naming of jasper varieties are attributed to various well-defined materials includes the
geographic locality where it is found, sometimes quite restricted such as "Bruneau" (a canyon) and "Lahontan" (a
lake), rivers and even individual mountains; many are fanciful, such as "forest fire" or "rainbow", while others are
descriptive, such as "autumn" or "porcelain". A few are designated by the place of origin such as a brown
Egyptian or red African jaspers.
Picture jaspers exhibit combinations of patterns such as banding from flow or depositional patterns, dendritic or
color variations resulting in what appear to be scenes or images on a cut section. Diffusion from a center
produces a distinctive orbicular appearance, i.e., leopard skin jasper, or linear banding from a fracture as seen in
leisegang jasper. Healed, fragmented rock produces brecciated (broken) jasper.
While "picture jaspers" can be found all over the world, specific colors or patterns are unique to the geographic
region from which they originate. For example Oregon’s Deschutes or Biggs jasper and Idaho's Bruneau jasper
from the Bruneau River canyon are particularly fine examples. Other examples can be seen at Llanddwyn Island in
Wales. A remarkable, pale, blue-green jasper, with patterns somewhat resembling those of malachite, occurs in a
deposit at Ettutkan Mountain, Russia.


References; https://www.minerals.net/mineral/jasper.aspx,   https://en.wikipedia.org/wiki/Jasper,  https://rocktumbler.com/blog/what-is-
agate-jasper-chalcedony/
Item # 46DESCJAS06200099
Polished Deschutes Jasper
from Elkins Gem Stones

$179.00
Here's an excellent polished free form specimen of Deschutes Jasper that we obtained from Wally Marks of the
Highway 50&95 rock shop in 1997. He obtained this directly from Hoot Elkins at Elkins Gem Stones in Prineville,
Oregon in 1977 and this piece was in Wally's personal collection until he sold it to us. For those of you who do not
know who Hoot Elkins was, the discovery of this picturesque Jasper is attributed to him sometime in the 1960's.
This is a true classic specimen from a classic locale!

This specimen weighs 5.9 oz or 0.37 lbs (169g) and measures 3.5 x 2.2 x 1.39 inches (8.9 x 5.6 x 3.5cm)
Item # 47DESCJAS06200554
End Cut Deschutes Jasper
from Elkins Gem Stones

$86.00
Here's an excellent end cut, NOT polished, specimen of Deschutes Jasper that we obtained from Wally Marks of
the Highway 50&95 rock shop in 1997. He obtained this from Hoot Elkins daughter Judy at Elkins Gem Stones in
Prineville, Oregon in 1995. This piece was an end cut of a specimen Wally was working on in his workshop. For
those of you who do not know who Hoot Elkins was, the discovery of this picturesque Jasper is attributed to him
sometime in the 1960's. (Hoot died in 1994) This is a true classic specimen from a classic locale!
Elkins Gem Stones closed in 2012
This specimen weighs 8.6 oz or 0.54 lbs (245g) and measures 5 x 3.2 x 0.25 to 1 inch (127 x 83 x 6.38 to 25mm)
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Item # 48BIGGJAS06200043
Biggs Jasper Slab from
Oregon

$73.00
Here's a very nice Biggs Jasper slab from Oregon. We procured this in Quartzsite in 2002 from a dealer from
Oregon who tols us this was Deschutes Jasper. After getting it home we discovered that the light colored center of
this slab was too soft to be Deschutes, but is in fact Biggs Jasper. Deschutes and Biggs are very similar but Biggs
jasper is a bit softer than Deschutes jasper. This is a very nice slab of Biggs jasper with tight formations. The darker
areas are very solid and this piece will make many fine cabs. The light colored center section is softer as may be
seen in the photos showing the extracted sections.  
This specimen weighs 6.54 oz or 0.4 lbs (185g) and measures 6.4 x 3.6 x 0.25 inches (162 x 91 x 6.46mm)
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Item # 49FANJAS06203942
Fancy Jasper Rough from
Brazil

$49.85
Here's a very nice Fancy Jasper rough specimen from Brazil. We procured this in 2005 from a Brazilian mineral
dealer. It has nice 3 color banding with distinct shades in the red-orange and golden colors.
This specimen weighs 54.2 oz or 3.39 lbs (1.54kg) and measures 5.4 x 5.3 x 2.4 inches (13.8 x 13.4 x 6.2cm)
Item # 50FANJAS06208271
Fancy Jasper Rough from
Brazil

$34.55
Here's a very nice Fancy Jasper rough specimen from Brazil. We procured this in 2005 from a Brazilian mineral
dealer. It has nice 3 color swirls with mixed shades in a dark green mix.  
This specimen weighs 31.5 oz or 1.97 lbs (895g) and measures 4.3 x 4.1 x 2.5 inches (10.9 x 10.5 x 6.4cm)
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Item # 51MRMJAS06205802
Mushroom Jasper Rough
from Arizona

$41.69
Here's a cut and burnished face Mushroom
Jasper rough specimen nodule from Northwest of
Phoenix, Arizona. We procured this in 2007 from
a mineral dealer in Quartzsite, Arizona. It has a
very large area with mushroom like shapes
surrounded by the traditional red band and the
greenish surround.

This specimen weighs 29.9 oz or 1.87 lbs (848g)
and measures
4.7 x 3 x 2.25 inches (12.1 x 7.7 x 5.7cm)
Item # 52MRMJAS06206743
Mushroom Jasper Rough
from Arizona

$69.52
Here's a Mushroom Jasper rough specimen from Northwest of Phoenix, Arizona. We procured this in 2007 from a
mineral dealer in Quartzsite, Arizona. It has amazing mushroom like shapes surrounded by the traditional red band
and the greenish surround. This specimen should make excellent slabs and cabochons.
This specimen weighs 49.8 oz or 3.12 lbs (1.41kg) and measures 5.7 x 4.1 x 2.9 inches (14.5 x 10.6 x 7.5cm)
Item # 53PORCJAS06204312
Porcelain Jasper Rough from
Mexico

$42.68
Here's an amazing old stock specimen of Porcelain Jasper from Mexico. We procured this in 2008 from a Mexican
mineral dealer in Quartzsite, Arizona. It has amazing artistic shapes and colors. This specimen should make excellent
slabs and cabochons.
This specimen weighs 38.5 oz or 2.4 lbs (1.09kg) and measures 6.1 x 4.4 x 2.7 inches (15.5 x 11.3 x 7cm)
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Item # 54WHCJAS06200841
Wild Horse Canyon Jasper
Rough from Oregon

$29.60
Here's a nice cut face Jasper rough specimen from Wild Horse Canyon in Oregon. We procured this in 2010 from a
mineral dealer in Nevada. It has interesting color formations. This specimen will need to be stabilized due to its
porous surfaces. It should then make excellent slabs and cabochons.
This specimen weighs 29.7 oz or 1.85 lbs (843g) and measures 3.6 x 3.3 x 2.5 inches (9.1 x 8.5 x 6.3cm)
Item # 55WHCJAS06203450
Wild Horse Canyon Jasper
Rough from Oregon

$10.85
Here's a nice cut face Jasper rough specimen from Wild Horse Canyon in Oregon. We procured this in 2010 from a
mineral dealer in Nevada. It has interesting color formations. This specimen will need to be stabilized due to its
porous surfaces. It should then make excellent slabs and cabochons.
This specimen weighs 6.1 oz or 0.38 lbs (175g) and measures 3.4 x 1.9 x 1.2 inches (8.7 x 5 x 3cm)
Item # 56RFJAS06205234
Rain Forest Jasper from
Australia

$68.50
This stone is actually a rhyolite and not a jasper. However, because everyone refers to it as Rainforest Jasper, we will
continue doing that here as well. Rainforest Jasper is the green form of Rhyolite and comes from Western Australia. It
has greens, browns, and yellows that are reminiscent of the darkness of a rainforest, with its filtered light through
green leaves and the brown forest floor.
Rainforest Jasper is a kind of Rhyolitic lava that can be found in volcanic areas. During the solidification process, gas
bubbles are trapped inside and are filled by siliceous material, such as Quartz Crystals, Jaspers, and other minerals.
It’s common to see quartz patches in the stone. And depending where they originated from, Rainforest Jasper can
also contain Nepholite and Feldspar. Rainforest Jasper is also known as Australian Rainforest Jasper, Rainforest
Rhyolite, Spherulitic Rhyolite, Agatised Rhyolite, and Green Rhyolite.
This specimen has a cut and polished face. It has natural fractures as is common with this material.

This specimen weighs 51.6 oz or 3.2 lbs (1.46kg) and measures 6.1 x 3.7 x 3.4 inches (15.7 x 9.5 x 8.7cm)
Item # 57KMBAJAS06200484
Kambaba Jasper Rough from
Madagascar

$96.80
Here's an excellent quality Australian Rainforest Jasper rough specimen from Western Australia. We procured this in
2009 from a mineral dealer in Nevada. It has top grade orbicular formations in a beautiful matrix. This quality is very
difficult to find.
This specimen weighs 112.5 oz or 7 lbs (3.189kg) and measures 6.8 x 4.5 x 3.7 inches (17.2 x 11.4 x 9.4cm)
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