Holidays.net Online Store

Holdays.net Home


November 19th, 2014
International Men's Day

November 20th, 2014
Universal Children's Day

November 20th, 2014
Africa Industrialization Day

November 20th, 2014
World Philosophy Day

November 21st, 2014
World Television Day

November 25th, 2014
World Day to Eliminate Violence on Women

November 27th, 2014
Thanksgiving Day

November 28th, 2014
American Indian Heritage Day

November 28th, 2014
Lincoln's Birthday

November 28th, 2014
Black Friday

November 29th, 2014
World Solidarity Day with Palestinian People

November 30th, 2014
First Sunday Advent

December 1st, 2014
World AIDS Day

December 2nd, 2014
World Day for Slavery Abolition

December 3rd, 2014
World Day for Persons with Disabilities

December 5th, 2014
International Volunteer Day

December 7th, 2014
Pearl Harbor Remembrance Day

December 7th, 2014
International Civil Aviation Day

December 8th, 2014
Feast of the Immaculate Conception

December 9th, 2014
International Anti-Corruption Day

December 10th, 2014
Human Rights Day

December 11th, 2014
International Mountain Day

December 17th, 2014
First Day of Chanukah

December 17th, 2014
Pan American Aviation Day

December 17th, 2014
Wright Brothers Day

December 18th, 2014
International Migrants Day

December 19th, 2014
International South-South Cooperation Day

December 20th, 2014
International Human Solidarity Day

 



Search:

3.4" Shiny Gold & Black Pyrite Concretion Oval With Stripes China For Sale For Sale

3.4

Untitled Document

....

3.4" Shiny Gold & Black PYRITE CONCRETION
Oval with Stripes - China
for sale


$75.00


Size:
3.4" x 3.1" x 2.8"


Shipping weight:
2.1 pounds


Condition:
Excellent
Learn what this means

Ships within
24 hours!


Free U.S. Shipping
Free insurance for
international orders

What do we do to ensure color accuracy in
our photos?
What we do


How do we pack specimens for
safe shipment?
How we do it

Recommended stand:
Small 2" Peg Stand

Click here to see all of our display stands


Here is a very attractive pyrite concretion from China with alternating gold and black stripes of shiny pyrite and dark gray shale. The piece has a shape like a ball, with a slightly cone-shaped, flattened bottom. There is no damage.

Click on the photos for enlarged view



3.4" cabinet size



Crystallized gold stripes



Great contrast between golden pyrite and dark grey shale




All of our specimens come with a custom label with accurate locality information Click arrow to see a video of this fine mineral specimen


Locality
Information about crystals/mineral specimens from this location


At the Tucson Gem, Rock & Mineral Show this year, I several of these beautiful, roughly spherical dark grey SHALE concretions with PYRITE (also known as fool's gold) formed in rings over the surface (and presumably within?). This highly aesthetic specimen comes from the Dongchuan District, Kunming Prefecture, Yunnan Province, China.


Mineralogy
Facts about gems, rocks and minerals


A concretion is a volume of sedimentary rock in which a mineral cement fills the porosity (i.e. the spaces between the sediment grains). Concretions are often ovoid or spherical in shape, although irregular shapes also occur. The word 'concretion' is derived from the Latin con meaning 'together' and crescere meaning 'to grow'. Concretions form within layers of sedimentary strata that have already been deposited. They usually form early in the burial history of the sediment, before the rest of the sediment is hardened into rock. This concretionary cement often makes the concretion harder and more resistant to weathering than the host stratum.

Pyrite is the classic "Fool's Gold". There are other shiny brassy yellow minerals, but pyrite is by far the most common and the most often mistaken for gold. Whether it is the golden look or something else, pyrite is a favorite among rock collectors. It can have a beautiful luster and interesting crystals. It is so common in the earth's crust that it is found in almost every possible environment, hence it has a vast number of forms and varieties.
Bravoite is the name given to a nickel-rich iron sulfide. It is closely related to pyrite but contains up to 20% nickel. Some mineral books treat it as a variety of pyrite.

Pyrite is a polymorph of marcasite, which means that it has the same chemistry, FeS2, as marcasite; but a different structure and therefore different symmetry and crystal shapes. Pyrite is difficult to distinguish from marcasite when a lack of clear indicators exists.

Pyrite's structure is analogous to galena's structure with a formula of PbS. Galena though has a higher symmetry. The difference between the two structures is that the single sulfur of galena is replaced by a pair of sulfurs in pyrite. The sulfur pair are covalently bonded together in essentially an elemental bond. This pair disrupts the four fold symmetry that a single atom of sulfur would have preserved and thus gives pyrite a lower symmetry than galena.

Although pyrite is common and contains a high percentage of iron, it has never been used as a significant source of iron. Iron oxides such as hematite and magnetite, are the primary iron ores. Pyrite is not as ecomonical as these ores possibly due to their tendency to form larger concentrations of more easily mined material. Pyrite would be a potential source of iron if these ores should become scarce.

Pyrite has been mined for its sulfur content though. During WWII, sulfur was in demand as a strategic chemical and North American native sulfur mines were drying up. A sulfide deposit near Ducktown Tenn. was found to be able to mine pyrite and other sulfides such as pyrrhotite and pentlandite and produce the needed sulfur as well as iron and other metals. The sulfur was used in the production of sulfuric acid, an important chemical for industrial purposes. Now most sulfur production comes from H2S gas recovered from natural gas wells.


Metaphysics
Information about crystal, gem and mineral metaphysics and healing


People interested in metaphysics and crystal healing tell us that pyrite is one of the most protective stones in use today. It can shield one from many types of negative energy. It is also an excellent healing stone, and as a representative of the Sun's golden energy it can help one to see through facades.


Our guarantee


Buy more,
save more

"crystal-digger"
finds a keeper!



Click here
for information about payment,
shipping, invoicing, how to contact us,
and more


Every specimen comes with our label, giving the full mineral name plus accurate locality information


About Treasure Mountain Mining

Fine Mineral Specimens for sale

Fine crystals for sale

Metaphysical crystals for sale


We are an award-winning, internationally known internet mineral dealer with an impeccable reputation for high quality mineral specimens, fast, friendly service, and a 100% satisfaction guarantee on all sales. Our mission is to bring joy into the lives of our mineral collecting customers by helping them build high-quality collections of gemstones, crystals, minerals and rocks. To do this, we offer a wide variety of the finest crystals including loose gemstones for sale, large crystal clusters for sale, pyrite nuggets for sale, aquamarine gemstones for sale, and quartz crystals for sale. You can come to us to buy clear quartz crystals, black tourmaline rough, phantom quartz crystals, raw amethyst crystals, amethyst quartz crystal geodes, gemstones for jewelry, and mineral specimens and crystals. Not only are we the best place to buy gemstones, we also provide gem and mineral information, facts about rocks and minerals, we help our customers identify rocks and minerals, and we report on the major rock and mineral shows. Also, you can read about us on Bob's Rock Shop, Mindat, and many other fine websites.


3.4

This item has been shown 0 times.

Buy Now

3.4" Shiny Gold & Black Pyrite Concretion Oval With Stripes China For Sale:
$75




Fairy Opal Multi-color Green Blue Cab,415.8ct,rough,75x58x18mm,op-a72,natural picture
Fairy Opal Multi-color Green Blue Cab,415.8ct,rough,75x58x18mm,op-a72,natural


123g Aa++ Natural Rare Bright White Pyramid Phantom Crystal Cluster Specimen picture
123g Aa++ Natural Rare Bright White Pyramid Phantom Crystal Cluster Specimen


Fabulous Huge Gem Purple Yellow Fluorite  - 3 Kg And 560 Grams From Namibia picture
Fabulous Huge Gem Purple Yellow Fluorite - 3 Kg And 560 Grams From Namibia


92g 56*50mm Natural Labradorite Rock Polished Golden Blue  Flash Ab2082 picture
92g 56*50mm Natural Labradorite Rock Polished Golden Blue Flash Ab2082


Pyrite & White Quartz - Racracancha Mine Peru - Carlsrocksandminerals.com   picture
Pyrite & White Quartz - Racracancha Mine Peru - Carlsrocksandminerals.com


W033 6 Pcs Gorgeous Goethite Specimen Rare No Reserve picture
W033 6 Pcs Gorgeous Goethite Specimen Rare No Reserve


Fairburn Agate - Teepee Canyon - Unique Fossil - Rare picture
Fairburn Agate - Teepee Canyon - Unique Fossil - Rare


Very Large 10.25 Inch Diameter Sparkling Quartz Keokuk, Iowa Area Geode Half picture
Very Large 10.25 Inch Diameter Sparkling Quartz Keokuk, Iowa Area Geode Half


Museum  Bubbly Blue Chrysocolla Huge Specimen - 2 Kgs And 600 Grams   picture
Museum Bubbly Blue Chrysocolla Huge Specimen - 2 Kgs And 600 Grams


Crazy Jasper 9 Lb 12 Oz Natural Red Mexican Rough Slab Garden Specimen 65989 picture
Crazy Jasper 9 Lb 12 Oz Natural Red Mexican Rough Slab Garden Specimen 65989