Wonderstone
SpiritRock Shop
Polishers Laps Saws
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Some rocks themselves are highly prized by collectors. An example is "Wonderstone" (rock that is naturally stained
with picturesque bands of red and orange iron oxide and hydroxide). In Nevada, some wonderstones are rhyolite
lava flows, and some are sandstones. The Wonderstone near Grimes Point in Churchill County, Nevada which is
used in lapidary, is a rhyolite tuff that was altered by silica and pyrite from hydrothermal fluids.
Nevada Wonderstone
This volcanic rock is a Rhyolitic air-fall tuff, material ejected from a volcano about 12 million years ago. The rock was
altered by hot waters that deposited pyrite (FeS2) and quartz (SiO2). Rainwater penetrated the rock and oxidized
the pyrite to form liesegang bands of red hematite (Fe2O3) and orange and brown goethite (FeO(OH)). Erosion
broke pieces of the rock from its outcrop, and streams carried pebbles to the shore of Lake Lahontan, which
covered much of western Nevada during the Pleistocene Epoch.

Grimes Point-Hidden Cave Archaeological Site  (BLM Land Fallon, Nevada)
There are three distinct rhyolite collecting locations @ 10 miles east of Fallon. They are known as Wonderstone
Mountain A, Wonderstone Mountain B, and Green Mountain. The Wonderstone Mountains are excellent locations
for finding collector pieces. Although this is BLM Land, be cautious of private mining claims marked in this area.
There is at least one claim owned by Randy Messer, Western Blasting Technologies who is researching mining this
material for stone tiles. There are plenty of opportunities if you have a high clearance 4 wheel drive vehicle. There is
a road going right up the crown of the Wonderstone Mountain B that is a breathtaking trip especially when coming
down over the peak...you cannot even see the road it drops so fast. The selection up there is no better than
anywhere else, but it's a fun ride. There are small pieces on the ground all over the place and the entire mountains
appear to be made of this Rhyolitic Wonderstone. A rock pick, hammer and chisel may find you some nice
specimens.

In the distance stands a single mountain made of green rhyolite...green mountain!
Most of the available rhyolite is porous but it is a really neat site to visit!
Utah Wonderstone
(from Utah Rockhounding)
Utah Wonderstone has the same basic designs as
Nevada Wonderstone but the Utah Variety is a more
porous Rhyolite. It will polish to a very nice matte finish.
Utah also has a sandstone variety of Utah Wonderstone
as well as the Rhyolite. Utah is famous for its sandstone
arches in the most beautiful color patterns! There are
specimens available of Utah Wonderstone and even
miniature sandstone arches.

Rhyolite is volcanic. This particular variety was once a
very fine volcanic ash.  Through pressure and time this
ash became rock hard as the colorful chemicals such as
iron in the earth seeped through and swirled into a
glorious design producing a smooth texture for a soft,
desirable cutting material.  This Wonderstone is only
found in the Fishlake Mountains of Utah. A striking
feature of Vernon Hills Wonderstone is its intricately
folded bands that create colorful designs in cream,
yellow-brown, and multiple shades of maroon.
Chris is now going
through our
collected pieces
and "Enhancing
their natural
Beauty" on her new
Lortone 8" Stainless
Arbor Package
We collected several
buckets of Nevada
Wonderstone a few
years ago from
Wonderstone
Mountains A&B near
Fallon, NV
We will be adding new pieces
for sale as Chris finishes with
her "Enhancements"....What
can I say? Chris is having a
great time shaping and
smoothing her specimens!
These are photos of
the un-shaped sides
of this piece
Item# NWS0111000A
2 sides shaped and smoothed Nevada
Wonderstone from Wonderstone Mountain in
Fallon, Nevada
$34.00
Beautiful specimen of liesegang bands of multiple shades
of pinks, greys and cream colored Rhyolite in beautiful
swirling patterns. Chris has shaped and smoothed two
sides of this specimen to show the beauty of these
patterns. An Excellent Display Specimen!

This piece weighs 0.69lb (314g)
and measures 2.5 x 3 x 2.1" (6.4 x 7.6 x 5.3cm)
Item# UWS0111000R
5 sides shaped and smoothed Utah Wonderstone
from Fishlake Mountains, Vernon Utah
$26.00
Beautiful specimen of liesegang bands of multiple shades
of pinks, greys, yellow and cream colored Rhyolite in
beautiful swirling patterns. Chris has shaped and
smoothed five sides of this specimen to show the beauty
of these patterns. An Excellent Display Specimen!

This piece weighs 0.47lb (214g)
and measures 2.8 x 2.2 x 1.7" (7.1 x 5.7 x 4.5cm)
Map from Utah Rockhounding
Item# UWS0112000R
3 sides shaped and smoothed Utah Wonderstone
from Fishlake Mountains, Vernon Utah
$26.00
Beautiful specimen of liesegang bands of multiple shades
of pinks, greys, yellow and cream colored Rhyolite in
beautiful swirling patterns. Chris has shaped and
smoothed three sides of this specimen to show the beauty
of these patterns. An Excellent Display Specimen!

This piece weighs 0.51lb (234g)
and measures 3.8 x 1.7 x 1.8" (9.8 x 4.4 x 4.6cm)
Item# UWS0113000R
1 side shaped and smoothed Utah Wonderstone
from Fishlake Mountains, Vernon Utah
$36.00
Beautiful specimen of liesegang bands of multiple shades
of pinks, greys, yellow and cream colored Rhyolite in
beautiful swirling patterns. Chris has shaped and
smoothed one side of this specimen to show the beauty of
these patterns. An Excellent Display Specimen!

This piece weighs 0.70 lb (318g)
and measures 5.3 x 1.7 x 2.8" (13.5 x 4.5 x 7cm)
Item# NWS0114000R
1 side shaped and smoothed Nevada Wonderstone
from Wonderstone Mountain in Fallon, Nevada
$12.00
Beautiful specimen of liesegang bands of multiple shades
of pinks, greys, yellow and cream colored Rhyolite in
beautiful swirling patterns. Chris has shaped and
smoothed one side of this specimen to show the beauty of
these patterns. An Excellent Display Specimen!

This piece weighs 0.24 lb (111g)
and measures 2.6 x 1.5 x 1.7" (6.8 x 3.8 x 4.5cm)
Item# NWS0711000R
Pair with 2 sides cut  Nevada
Wonderstone from Wonderstone
Mountain in Fallon, Nevada

$49.00
Beautiful specimen of liesegang bands of
multiple shades of pinks, greys, yellow
and cream colored Rhyolite in beautiful
swirling patterns. Stunning wood grain
looking wonderstone...this is an example
of why it is sometimes known as
"Hickoryite"
An Excellent Display Specimen!

This pair weighs 1.39 lb (631g)
and measures 3.6 x 3.3 x 1 to 1.3"
(9.1 x 8.3 x 2.6 to 3.3cm)