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Topic: Erythrite


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 ERYTHRITE - LoveToKnow Article on ERYTHRITE   (Site not responding. Last check: 2007-10-26)
The smaller coastingsteamers call, and there is an active trade with Chios and Smyrna.ERYTHRITE, the name given to (I) a mineral composed of a hydrated cobalt arsenate, md (2) in chemistry, a tetra- hydric alcohol.
The name erythrite, from ~pvOpc, red, was given by F. Beudant in 1382.
Theinternally compensated modification, i-erythrite, correspondingto mesotartaric acid, occurs free in the algae Protococcus vulgaris, and as the orsellinate, erythrin, C4H6(OH)2(O.C5H703)2, in many lichens and algae, especially Roccella montagnei.
www.1911encyclopedia.org /E/ER/ERYTHRITE.htm   (1202 words)

  
 ERYTHRITE - Online Information article about ERYTHRITE
(2) The alcohol erythrite has the constitutional formula HO•H2C•CH(OH)•CH(OH)•CH2OH; it is also known as erythrol, erythroglucin and phycite.
Energetic oxidation gives erythritic acid and mesotartaric acid.
i-Erythrite and the racemic mixture of the dextro and laevo varieties were synthesized by Griner in 1893 from divinyl.
encyclopedia.jrank.org /EMS_EUD/ERYTHRITE.html   (332 words)

  
 ERYTHRITE Chapter 25. Arsenates, arsenites, phosphates, and vanadates
Erythrite, a cobalt arsenate hydrate mineral, was reported from Franklin by French (1953).
Hendricks (1960) reported it as light violet red clusters of fibrous crystals, associated with galena, calcite, and malachite on a specimen from Mine Hill.
Erythrite has been found sporadically in minor amounts at Sterling Hill, where it occurs as bright pink to light pink clusters (0.5-1.0 mm) of microscopic crystals on fracture surfaces in franklinite/willemite ore. It has also been found as pink 1-2 mm rosettes with epidote on the 1400 level; this material has CoO > 25 wt.
franklin-sterlinghill.com /dunn/ch25/erythrite.stm   (107 words)

  
 Erythrite   (Site not responding. Last check: 2007-10-26)
Erythrite is the secondary mineral, and has formed a drusy crust over the surface.
Erythrite can be found in North America in Idaho, and Ontario Canada.
Erythrite which is colored by cobalt, is often confused with kammererite.
www.capecodrocks.com /erythrite.htm   (100 words)

  
 Marocco Special   Bou Azzer Mining Complex
Erythrite, Cobaltocalcite and Roselite are strong in demand but mine management does not admit mineral traffic and therefore you have to be extremely cautious to ask for minerals in the Bou Azzer village and in the.
Erythrite in the Bou Azzer mine occurs also as pink acicular xls forming globular aggregates.
Nice specimens may occur sometime at the old Ait Hamane mine and these may be easily recognised; Ait Hamane erythrite xls are of a deep purple colour with a vivid luster and are associated with white quartz xls micro skutterudite xls in vugs.
www.smartminerals.com /morocco2004/articoli/marocco_bou_azzer_ingl.htm   (1427 words)

  
 Erythrite -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-26)
Erythrite is a secondary hydrated arsenate of (A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition) cobalt (Solid homogeneous inorganic substances occurring in nature having a definite chemical composition) minerals with the formula (Co (AsO
Erythrite crystallizes in the (additional info and facts about monoclinic) monoclinic system and forms prismatic crystals.
The nickel variety, annabergite, occurs as a light green nickel bloom on nickel arsenides.
www.absoluteastronomy.com /encyclopedia/e/er/erythrite.htm   (129 words)

  
 ERYTHRITE FACTS AND INFORMATION   (Site not responding. Last check: 2007-10-26)
Erythrite takes its name from the Greek erythros, meaning red.
Historically, erythrite itself has not been an economically important mineral, but the prospector may use it as a guide to associated cobalt and native silver.
Erythrite has also been used to color glass.
www.velocitydatasys.com /erythrite   (204 words)

  
 Institut für Mineralogie und Kristallographie - Publikationen   (Site not responding. Last check: 2007-10-26)
The crystal structures of erythrite from Schneeberg, Saxony (Germany), and annabergite from Lavrion, Attika (Greece), were refined using single crystal x-ray diffraction data.
For the erythrite and annabergite, x-ray data measured up to 2q = 65 and 70°, resp.
The erythrite belongs to space group C2/m, Z = 2; and has the unit-cell parameters a = 10.251(3).ANG., b = 13.447(4).ANG., c = 4.764(1).ANG., beta = 104.98(1)°, vol.
www.univie.ac.at /Mineralogie/cgi-bin/abs.cgi?Searchterm=104&Category=NR   (240 words)

  
 Trinity Mineral Co - The Munich 2000 Show
This is the only specimen of erythrite that I bought that was not part of Francois Lietard's group.
5.5 x 3 cm specimen of gray schist with a 3.5 cm druse of razor sharp and gemmy crystals of erythrite to 0.9 cm in length.
4.3 x 4.2 cm specimen with sharp and lustrous crystals of erythrite crystals to 1.4 cm in length.
www.trinityminerals.com /ms2000/erythrite.shtml   (312 words)

  
 Erythrite Information about the mineral specimen, gem or Crystal
Erythrite and Annabergite are both important markers of cobalt and nickel ores.
Annabergite is bright green and is isostructural with erythrite.
Most erythrite is found in the form of crusts, but good Erythrite specimens have been found in North America, in Idaho and Ontario Canada.
www.minerals-n-more.com /Erythrite_Info.html   (353 words)

  
 ERYTHRITE (Hydrated Cobalt Arsenate)
Erythrite is a wonderful mineral for people who like striking, unusual colors.
Most erythrite is found in the form of crusts, but specimens from Morocco have larger crystals.
The unique red-purple color of erythrite is very attractive, and its nice sparkle make this mineral a joy to add to one's collection.
mineral.galleries.com /minerals/phosphat/erythrit/erythrit.htm   (262 words)

  
 ANNABERGITE Chapter 25. Arsenates, arsenites, phosphates, and vanadates
Annabergite occurs as a whitish powdery encrustation on fluorite, associated with pimelite and nickel arsenides from the Trotter Shaft at Franklin.
Because annabergite is not unambiguously differentiated from erythrite by X-ray methods alone, the identification is tentative.
However, the assemblage is Co-rich at its outer extremities where the probable annabergite powder occurs, and thus the unanalyzed material could possibly be nickeloan erythrite.
franklin-sterlinghill.com /dunn/ch25/annabergite.stm   (139 words)

  
 erythrite.htm   (Site not responding. Last check: 2007-10-26)
Description: Erythrite is a pink to purple powdery to acicular mineral formed as a result of near-surface alteration of other cobalt-rich minerals.
LAFAYETTE COUNTY: Erythrite was tentatively reported as intermixed with melanterite as an alteration of an unidentified cobalt mineral intergrown with marcasite at the Martin Mine south of Benton (SW SE Sec.
MARATHON COUNTY: Erythrite was tentatively identified on iron-oxide stained surfaces on rock piles in the NE SW sec.
www.uwrf.edu /~wc01/erythrite.htm   (71 words)

  
 Trinity Mineral Co - The 2001 Munich Show
The large undamaged crystal in the center of the specimen is 1.8 cm in its longest dimension.
Bright and lustrous erythrite crystals comprised of two generations - larger macro crystals to 0.8 cm and light pink tufts of micro crystals.
Attractive thumbnail specimen of bright and lustrous erythrite crystals to 1.2 cm in length.
www.trinityminerals.com /ms2001/eryth.shtml   (409 words)

  
 erythrite --  Encyclopædia Britannica   (Site not responding. Last check: 2007-10-26)
Erythrite from Morocco (top) on skutterudite and (bottom) with cobalt ore
Erythrite, which is used as a guide to the presence of cobalt-nickel-silver ores because of its crimson or peach-red colour, occurs as radiating crystals, concretions, or earthy masses in the oxidized zone of cobalt and nickel deposits.
hydrated nickel arsenate mineral that is very similar to erythrite (q.v.).
www.britannica.com /eb/article-9032960?tocId=9032960   (298 words)

  
 PIRSA Minerals - Mineral Resource Potential - Cobalt   (Site not responding. Last check: 2007-10-26)
Minor occurrences of erythrite and cobaltiferous pyrite are associated with the Dome Rock copper mine.
Nodules of erythrite are associated with copper, nickel and silver mineralisation hosted by Adelaidean diapiric breccia of the Blinman Diapir.
Other occurrences include Nichols Nob, Mount Ogilvie and Mount Ogilvie West where smaltite and erythrite are associated with nickel mineralisation, and Cobalt Mine where erythrite is associated with copper—nickel—silver mineralisation.
www.pir.sa.gov.au /pages/minerals/commodity/cobalt.htm   (667 words)

  
 erythrite , rock, crystal, mineral, gem stone, birth stones - mineralgallery
As a mineral specimen, and as an indicator in prospecting for cobalt and nickel.
Powdered erythrite will turn lavender blue on heating.
Crystals are prismatic to accicular and flattened often deeply atriated, but are usually rare and poorly formed; usually in radiating groups or crusts; often in globular or reniform shapes with course fibrous interior, also earthy or powdery.
www.mineralgallery.co.za /erythrite.htm   (143 words)

  
 Selected Specimens
This piece appears to have been recoved near surface by the amnount of very coarse, rich erythrite included in and on it.
Very rich, crystallized native silver in "herringbone" configuration that is encrusted with coarse erythrite and gossanous, cobalt rich (pink) mineralization.
Serious, thick, dendritic silver with calcite between the crystals and erythrite present on much of the outside of the specimen.
www.davidkjoyceminerals.com /htmfiles/thumbpg.asp?TitleID=187   (448 words)

  
 Alan Guisewite's Mineral Collection Images: Miscellaneous Systematic Phosphates Page
Very nice flat radiating clusters of erythrite (hydrated cobalt arsenate) from the Sara Alicia Mine, Mun.
Erythrite forms two complete series, one with annabergite and the other with hörnesite.
An unusual combination of arsenates (and colors) - rose erythrite, green conichalcite, and brown smolianinovite (a complex iron cobalt nickel arsenate) - on matrix from Mina Encontrada, Molvizar, Granada, Andalusia, Spain.
www.cs.cmu.edu /afs/cs.cmu.edu/user/adg/www/adg-pspimages.html   (6061 words)

  
 ! Erythrite Collecting fossils minerals rocks shop Gems jewelry lapidary gemstones
Erythrite is a rare mineral with vivid pink and purple colors as shown in the sample above.
The mineral colors may vary from pearly blush pink to deep purple which are between translucent and transparent.
Erythrite mineral is very soft and is can easily be deformed.
www.worldofrockhounds.com /erythrite.html   (91 words)

  
 Learn About Erythrite Page from Quartz 'N' All - High Quality Crystals, Minerals and Fossils.
Below you will find the geological and chemical properties and some further information regarding the mineral Erythrite.
For an explanation of, and to learn about the geological terms used, please look at the Fact File page.
To read the metaphysical properties, or to view examples of Erythrite, click here.
www.quartznall.co.uk /learnerythrite.htm   (153 words)

  
 Item for sale
Comments : This erythrite was bought as part of a Tsumeb collection and I have no reason to believe that it might be from elsewhere.
Thus it is no surprise to find damage to all the erythrite that portruded above the native rock.
In all the recesses there is enough erythrite to make this specimen collectable.
www.mineralgallery.co.za /photogal/201ery.htm   (266 words)

  
 The Micromount Corner
Cobalt deposits often feature erythrite as a secondary mineral from alteration of the primary cobalt minerals such as the siegenite (cobalt nickel sulfide) and linnaeite (cobalt sulfide).
The mineral was photographed through the microscope at a magnification of 30X with Fuji ASA 200 color print film using a white LED as the light source and a 4 second exposure.
Although good micromount specimens of erythrite are a bit hard to come by, the beauty and unique color of the mineral makes a must have for the micromount collection.
www.gamineral.org /micromount_corner.html   (10437 words)

  
 ANNA LEOPOLDOVNA - LoveToKnow Article on ANNA LEOPOLDOVNA   (Site not responding. Last check: 2007-10-26)
Annaberg has technical schools for lace-making, commerce and agriculture, in addition to high grade public schools for boys and girls.
ANNABERGITE, a mineral consisting of a hydrous nickel arsenate, Nis(AsO4)2+8H2O, crystallizing in the monoclinic system and isomorphous with vivianite and erythrite.
Crystals are minute and capillary and rarely met with, the mineral occurring usually as soft earthy masses and encrustations.
99.1911encyclopedia.org /A/AN/ANNA_LEOPOLDOVNA.htm   (2452 words)

  
 Ershovite
Eitelite Elpidite Enstatite Epididymite Epidote Ershovite Erythrite Eskolaite Eudialyte Eudidymite Ewaldite Fayalite...
edingtonite, eitelite, elpidite, epididymite, épidote, ershovite, erythrite, eskolaite, eudialyte, eudidymite, ewaldite...
Erythrite : 7 - 16 - 26 - 27 - 86 - 150C - 163...
www.toprocks.net /MineralList/27/Ershovite.asp   (248 words)

  
 eritriti galleria 1   (Site not responding. Last check: 2007-10-26)
Most of Erythrite samples are composed by association of thick xls of an outstanding deep magenta colour.
The vug is located on the left side of the specimen and is about 4,0 x 2,0 cm in size.
Specimen with a lot of single Erythrite xls wideapread on one side of the specimen.
www.smartminerals.com /morocco2004/Eritriti_belle.htm   (210 words)

  
 Erythrite Mineralium.com - Fine Mineral Specimens
However, strongly connected with the name of this locality is the rare cobalt mineral Erythrite.
From there come the largest and nicest Erythrite specimens...
Beautiful cabinet specimen with radial-bladed aggregates of crystals in striated habit, which show vitreous luster and characteristic violet-purple color.
www.mineralium.com /index.php?lang=ENG&list=ERY   (128 words)

  
 Search Results for erythrite - Encyclopædia Britannica   (Site not responding. Last check: 2007-10-26)
Erythrite, which is used as a guide to the presence of cobalt-nickel-silver ores because of its crimson or...
It is found in small quantities in terrestrial and meteoritic native nickel-iron, in the Sun and stellar...
Expand your search on erythrite with these databases:
www.britannica.com /search?query=erythrite&submit=Find&source=MWTEXT   (148 words)

  
 Mineral specimen: Erythrite - Mineral specimens Search Results - Fabre Minerals   (Site not responding. Last check: 2007-10-26)
The small pink rosettes associated with the main crystals are a second generation of Erythrite.
Large crystals of this lustrous Erythrite on Skutterudite matrix.
So, in this one I can see the beauty of the large crystals of Erythrite which are long but covered with a rare mineral: Barium-pharmacosiderite.
www.fabreminerals.com /search_results.php?LANG=EN&MineralSpeciment=Erythrite   (294 words)

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