Petrified Wood, Geodes, Crystals, Agates and Carvings

Page 9  Go To Page: [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] [ 8 ] [ 10 ] [ 11

McAfee Secure sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

Cost

Item Description

Click Picture
for Larger Image

$45.00 PR900c  This is a very pretty, above average quality, multi-colored Peacock Marble Vase from China.   It has a very nice mix of various colors with nice highlights.  This lovely Vase measures almost 3 1/2" in diameter x8" tall.  It is highly polished all around except for the base. 

Another photo

Another photo

Another photo

Peacock Marble is from Southwest China and formed in Limestone by heat and pressure in the earth's crust. Recrystallization during Himalaya formation caused the limestone to change in texture and makeup. Fossilized materials along with it's original carbonate minerals, recrystallized and formed large, coarse grains of calcite. Impurities present in the limestone during the recrystallization affected the mineral composition of the marble.  The minerals that result from the impurities give the marble up to ten different colors. The corresponding colors and minerals that can be found: Green - Serpentine; Purple - Manganese spar; Brown - Iron; Gray - Silicon Dioxide; Red - Hematite; Orange - Iron; White - Calcite; Violet - Iron Manganese; Yellow - Limonite; Blue - Copper, Cobalt, Chromium; Black - Carbon, Iron, Manganese. Peacock Marble is also called "seven color Jade" in local language.

polished rock

Peacock Marble Vase

$90.00 PR901b  Here is a great addition to your office or home.  This is a beautiful piece of nicely polished Kambaba Jasper from Africa.  It measures nearly 5 7/8" tall x over 3 3/4" x 3 7/8" and weighs 4 1/4 pounds.  This specimen has a lovely color scheme of various darker greens with black accents in an interesting design found only in Kambaba Jasper.  Definitely something different and very eye-catching for the polished rock collector.

Another photo            

Another photo

Another photo

Jasper, or spotted stone, is an opaque, impure variety of Quartz that is usually red, yellow or brown in color.  Some Jaspers simultaneously exhibit several variants such as banding, flow patterns, dendrites or color variations.  This results in what appears to be scenes or images in a cut section of the Jasper.

jasper

Kambaba Jasper

$35.00

PR902b   Here is a beautiful polished piece of Black Skin Agate. This interesting specimen has an excellent blend of different Greys, Tans and Dark Brown colors in a nice design.   This wonderful piece measures almost 4 3/4" x nearly 3 3/8" x 1 3/8" and is highly polished on all sides.  A very nice addition to any collection.

Another photo 

Another photo

Another photo

Agates mostly occur as nodules in volcanic rocks or waters containing Silica in solution which is possibly derived from the decomposition of Silicates in the lava.  The Siliceous matter is deposited in regular layers resulting in the banded or striped formation.  It is very unlikely that you would ever find an exact duplicate of any type of Agate, Brazilian or other.

polished rock

Black Skin Agate

$70.00 PR903c   Here is a lovely specimen of Petrified Wood from Madagascar.  The very pretty Petrified Wood slab has a wonderful blend of different Browns, various Reds and Grey colors with some crystal areas all in a very pretty design.  It has been polished on both sides with the outside edges left natural showing the wonderful unique character.  The large Petrified Wood slab measures nearly 8 5/8" x 8 1/8" x 1/2" thick.  Very nice!

Another photo   Closer view

Another photo

Another photo

Another photo

Petrified Wood is a type of a fossil as it consists of fossil wood where all the organic materials have been replaced with minerals while retaining the original structure of the wood.  These minerals are most often Silicates such as Quartz.  Other minerals, Manganese, Iron and Copper, in the water or mud during the petrification process give Petrified Wood a variety of color ranges: black - Carbon; green/blue - Copper; red/brown/yellow - Iron.  Petrified Wood can preserve the original structure of the wood in all its detail all the way down to the microscopic level.  Structures such as tree rings and the various tissues are often observed features.  Although Petrified Wood can be found worldwide, it is rather rare in larger quantities and at times can be difficult to obtain by the average collector.

polished rock

Petrified Wood

$200.00 PR904b  Here is a very lovely, very high quality Purple Amethyst Geode section with very sparkly accents.  This beautiful Amethyst geode portion has awesome crystal points of different sizes and very rich Purple color.  The cut edges are left natural and unpolished.  It measures almost 8 3/4" wide x 3 3/4" x7 7/8" tall; weighs 8 3/4 pounds and has a super sparkly-shiny appearance.  Some of the crystals are chipped or broken, common for this material but it's still a fantastic piece.  Just plain exceptionally nice!

Another photo  Closer view

Another photo 

Another photo

Another photo

Amethyst is a purple variety of Quartz often used as an ornament.  It occurs in color from a light, slightly pinkish violet to a deep grape purple.  Upon exposure to heat, Amethyst generally becomes yellow, which some refer to as Citrine or "burnt" Amethyst.  It is widely distributed as a mineral, but fine, clear specimens that are suitable for cutting as ornamental stones.

polished rock

Amethyst

$60.00 PR905b  Here is a very nice, above average quality, Citrine Crystal specimen from Brazil.  The very pretty crystal cluster measures 5" x almost 4 1/2" x nearly 3" tall; weighs over 3 1/2 pounds and has naturally sparkly dark Honey Gold color.  This true beauty was part of a larger Geode that was broken down to show the inner Crystals.

Another photo 

Another photo

Another photo

Citrine is any Quartz Crystal or cluster that is yellow or orange in color.  Most Citrine, usually begins as Amethyst which becomes yellow due to heat treatments.  True Citrine is often rarer but is hard to distinguish from the heat treated variety.  It is widely distributed as a mineral, but fine, clear specimens that are suitable for cutting as ornamental stones.

polished rock

Citrine

$50.00 PR906c  Here is a gorgeous piece of Petrified Wood from Oregon State.  The larger specimen has rich deep Brown colors with Tan and Grey accents. The cut top face is highly polished to show the inner beauty.  The exterior is left natural with outstanding character of the bark textures.  It measures nearly 6 1/4" wide x 6" x over 2 3/4" tall and weighs 4 1/4 pounds. This is a unique, very interesting, one-of-a-kind creation to keep for your own or give as a gift.

Another photo 

Another photo

Another photo

Petrified Wood is a type of a fossil as it consists of fossil wood where all the organic materials have been replaced with minerals while retaining the original structure of the wood.  These minerals are most often Silicates such as Quartz.  Other minerals, Manganese, Iron and Copper, in the water or mud during the petrification process give Petrified Wood a variety of color ranges: black - Carbon; green/blue - Copper; red/brown/yellow - Iron.  Petrified Wood can preserve the original structure of the wood in all its detail all the way down to the microscopic level.  Structures such as tree rings and the various tissues are often observed features.  Although Petrified Wood can be found worldwide, it is rather rare in larger quantities and at times can be difficult to obtain by the average collector.

polished rock

Petrified Wood

$70.00

PR907c   This is a beautiful polished free form of Tiger Eye.  This gorgeous specimen exhibits a nice array of gold flash colors mixed in with the Iron oxide as it is rotated in the light.  It measures nearly 4 1/8" x 2 5/8" x almost 2 3/8" thick; weighs nearly 1 3/4 pounds and was highly polished on all sides here at the Rock Shed.  An excellent paperweight or conversation piece for your collection!

Another photo 

Another photo

Another photo

Another photo

Tiger-eye is a member of the quartz family, a cryptocrystalline variety. It is one of the chatoyant varieties of gemstones. Due to the fibrous structure of the gemstone, as light reflects within the thin parallel fibrous bands it exhibits a changeable silky luster or chatoyancy. It occurs naturally in colors of gold and blue.

polished rock

Tiger Eye

$100.00 PR908b  This is something really different for the polished rock collector!!  Here is an above average quality Lapis Free Form.  It has lots of sparkly Pyrite scattered about the rich Royal Blue color.  It measures nearly 4 5/8" x 2 7/8" x 1 5/8" thick and has been highly polished on all sides.  This gorgeous Lapis specimen makes a very unique gift or add it to your collection.

Another photo

Another photo

Another photo

Lapis is a stone with a long tradition of being considered a gem.  It is usually deep blue in color and is opaque.  It is a rock and not a mineral as it is made up from various other minerals.  The main component is Lazurite which is a Feldspar Silicate.  Lapis may also contain Calcite, Sodalite and Pyrite.  It is found worldwide.

polished rock

Lapis Free Form

$60.00 PR909c  Here is something different for your office or home.  This is a very beautiful Brazilian Agate with a unique shape.  The outstanding Agate has fantastic banding in shades of various creams, bluish grays and different browns in a nice design.  It measures 3 1/4" wide x 2 3/8" x almost 2" with a very nice polish on the cut face with the balance left natural.  Definitely some thing different for the polished rock collector.

Another photo

Another photo

Another photo

Another photo

Agates mostly occur as nodules in volcanic rocks or waters containing Silica in solution which is possibly derived from the decomposition of Silicates in the lava.  The Siliceous matter is deposited in regular layers resulting in the banded or striped formation.  It is very unlikely that you would ever find an exact duplicate of any type of Agate, Brazilian or other.

polished rock

Brazilian Agate

$60.00 PR910c  Here is a beautiful Amethyst Free Form from Brazil.  This Amethyst specimen has wonderful Dark Purple color on the crystals with a cool White Calcite formation mixed in . It measures approximately 9" long x 4" wide x nearly 2 1/4".  This Amethyst was part of a larger geode.

Another photo  Close up   

Another photo        

Click here to view more Amethyst specimens!

Amethyst is a purple variety of Quartz often used as an ornament.  It occurs in color from a light, slightly pinkish violet to a deep grape purple.  Upon exposure to heat, Amethyst generally becomes yellow, which some refer to as Citrine or "burnt" Amethyst.  It is widely distributed as a mineral, but fine, clear specimens that are suitable for cutting as ornamental stones.

amethyst

Amethyst Free Form

$50.00

PR911c   Here is something different from the gift department at the Rock Shed. This is a very nice specimen of Youngite from Wyoming. It measures 7" x nearly 4" x 2 3/4" thick and has a nice botryoidal quartz druzy finish on some of the natural exposed parts in the cavities. The slab has been polished on one side and varies in color from tan to grey to a reddish tint in other areas. This Youngite specimen is very colorful and shows a very pretty blue-green under short wave UV light.  An outstanding addition to any polished rock collection.

Another photo

Another photo

Another photo

Youngite is an Agatized Brecciated Jasper with a grayish translucent druzy quartz around the outside of the material. The druzy quartz usually fluoresces green. The Jasper center color varies from tan to peach, brown, reddish and salmon. Youngite is used in making gemstone beads or cabochons and is very hard.

polished rock polished rock

Youngite

$110.00 PR912b   Here is an exceptional Rutilated Quartz Crystal with tons of character.  This awesome beauty measures almost 3 5/8" tall x 2 7/8" x nearly 1 1/2" and has excellent clarity throughout the crystal showing the brown rutilated inclusions.  This beautiful Crystal has a wonderful shape with a high polish on all the facets that only add to it.  These Quartz Crystals don't photograph well to properly show the gorgeous quality.  Very nice!

Another photo  

Another photo

Another photo

Quartz is the second most common mineral in the Earth's continental crust.  It is mainly composed of Silica or Silica based minerals.  Although Quartz is known by a variety of names, the most important distinction between types of Quartz is that of macro-crystalline, individual crystals visible to the unaided eye, and micro-crystalline, where aggregates of crystals are only visible under high magnification.  There are many forms of Quartz including Chalcedony, Amethyst, Citrine, and Carnelian which are results of mineral impurities or heat treatments.

polished rock

Rutilated Quartz Crystal

$18.00 PR913b  Here is something different from the gift shop at the Rock Shed.  This is a very nice, above average quality complete Mexican Trancas Geode half.   The inside reveals very nice clear and sparkly Quartz Crystals.   The face where it was cut open is highly polished.  The beautiful Geode measures 3 3/8" x 3 3/8" x 1 3/8" thick with a natural, rough texture on the outside. This is a unique, very interesting, one-of-a-kind creation to keep for your own or give as a gift.

Another photo 

Another photo 

Another photo

Geodes are geological rock formations which occur in sedimentary and certain volcanic rocks.  They are essentially rock cavities or vugs with internal Crystal formations or concentric banding.  The exterior is generally Limestone while the interior contains Quartz Crystals and/or Chalcedony deposits.  If the Geode is completely filled with Crystal, being solid all the way through, it is then called a nodule.

polished rock

Trancas Geode

I'm on Page 9
Go to Page: 
[ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] [ 8 ] [ 10 ] [ 11 ]

Click on the link below if  you would like to get an idea of shipping cost on your package
Shipping Calculators

Ordering information and instructions

The Rock Shed
515 1st Street
Keystone, SD  57751

Hours: Monday - Saturday 9:00 AM to 6:00 PM
 Toll Free Order Line:  1-866-354-0894
Sunday 1:00 to 6:00 PM
 Information:  605-666-4813
email:  info@therockshed.com

Home
 Long Gemstone Beads I Short Beads I Amber & Necklaces I Bracelets I Earrings I Sterling Pendants
Rosaries I Fossils I Copal I Polished Rock
I Educational Kits I Bookends I Gold Specimens I Gallery
Hearts I Septarians I Spheres I Eggs I Minerals I Gemstone Lights I Books I Plastic Stands I Brass Stands
Rock Tumbler Page I Grit and Accessories I Tumbling  Rock I Rough Rock I Landscape Rock
Lapidary Grinders I Lapidary Saws I Diamond Blades I Agates I Findings I Clearance
Shipping Information I History I Auctions
I Pictures I Links