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Topic: Haematite


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  Haematite or Hematite - Gemstone Information   (Site not responding. Last check: 2007-10-19)
Haematite is a compact form of iron oxide.
Haematite is sometimes used as beads to imitate fl pearls.
Haematite is often carved as a cameo or sealstone, and is very commonly seen in gent's rings with a crude intaglio carving of a helmeted warrior's head.
www.24carat.co.uk /haematite.html   (283 words)

  
 Wholesale haematite included quartz crystals from TOPROCK minerals and crystals
Haematite is often ground down to a powder and then reconstituted with a resin.
When haematite crystals are found in a pattern that resembles the petals of a flower, they are called "iron roses" while the shiny crystals are known as "specular haematite" The word specular comes from the Latin word for mirror, and this form of haematite is indeed often used in the manufacture of reflective surfaces.
Haematite is both a primary and a secondary mineral.
www.toprocks.info /crystalsandminerals/haematite.htm   (379 words)

  
 HAEMATITE, or HEMATITE - Online Information article about HAEMATITE, or HEMATITE
Haematite has no distinct cleavage, but may show, in consequence of a lamellar structure, a tendency to parting along certain planes.
Much haematite occurs in a compact or massive form, often mammillary, and presenting on fracture a fibrous structure.
The hard haematite is occasionally cut and polished as an ornamental stone, and certain kinds have been made into beads simulating fl pearls.
encyclopedia.jrank.org /GUI_HAN/HAEMATITE_or_HEMATITE.html   (788 words)

  
 Haematite and Ferric Oxide (IARC Summary & Evaluation, Supplement7, 1987)
Underground haematite miners have a higher incidence of lung cancer in the presence of exposure to radon daughters (although other agents might also contribute to the risk) than surface haematite miners [ref: 1-11].
Haematite mining with low-grade exposure to radon daughters and silica dust was not associated with excess lung cancer in a relatively large cohort [ref: 12].
The importance of exposure to radon daughters in the occurrence of lung cancer in haematite miners is also suggested by the time trend of lung cancer rates in a mining population [ref: 4].
www.inchem.org /documents/iarc/suppl7/haematite.html   (982 words)

  
 Semi-Precious Beads - Haematite Shapes. Stars, hearts, cubes and ovals.
Haematite is a polished iron ore. It has a metallic fl appearance, although the text book says it should be red due to the oxides in the stone.
Haematite is a heavy stone and is believed to promote Anti-depression.
The haematite ovals that we stock are 6mm long and 3mm in width.
www.mailorder-beads.co.uk /haematite-shapes.html   (292 words)

  
 Ilmenite - LoveToKnow 1911   (Site not responding. Last check: 2007-10-19)
It crystallizes in the parallel faced hemihedral class of the rhombohedral system, thus having the same degree of symmetry as phenacite and pyrophanite, but differing from that of haematite.
and (Fe,Mg)0 in this ratio of 1:1, yet there is often an excess of ferric oxide to be accounted for; this may perhaps be explained by the regular intergrowth on a minute scale of ilmenite with haematite, like the intergrowth of such substances as calcite and sodium nitrate, which are similar crystallographically but not chemically.
Ilmenite has a fl streak; it is opaque, but in very thin scales sometimes transparent with a clovebrown colour.
www.1911encyclopedia.org /Ilmenite   (453 words)

  
 Catalyst of a sintered iron oxide-containing article - Patent 4789659
Reduction of the sintered iron oxide article to an iron article is conveniently conducted by passing a current of a reducing gas such as hydrogen and/or carbon monoxide over the sintered iron oxide articles at a temperature in the range 300 to 1200.degree.
Haematite was milled to a fine powder, having a median particle size of 3.mu.m, all the particles having a size below 10.mu.m.
958 parts by weight of the milled haematite powder was then mixed with 31 parts by weight of alumina trihydrate, and 11 parts by weight of calcium carbonate, both of which had been previously ground to a similar degree of fineness as the haematite.
www.freepatentsonline.com /4789659.html   (2871 words)

  
 Geological Society - News - Blueberries spied on Mars, explained on Earth
They are rich in iron, in the form of grey haematite (identified using the Mössbauer spectroscope on the rover) that probably formed in a wet environment.
Marjorie Chan and her team from the University of Utah had wondered if there might be haematite concretions on Mars, given the red sediments present there, and the suggestions of water flow at some time in the past.
They were familiar with haematite balls, concretions that range from a few millimetres to 20 centimetres across, and weather out from red sandstone in Zion and Capitol Reef national parks, Grand Staircase-Escalante National Monument, Snow Canyon State Park and the Moab area, in southern Utah.
www.geolsoc.org.uk /template.cfm?name=MarsMarbles   (438 words)

  
 SME--VIRTUAL ATLAS OF OPAQUE AND ORE MINERALS
Haematite (blue-white) occurs as very poorly polished fine-grained intergrowths cementing silicate grains (low reflectance, right top and bottom); as rounded martite grains pseudomorphing magnetite (centre right) and as single coarse-grained crystals (top centre, bottom left).
Haematite occurs as very fine crystals (right) that lie along the basal cleavage of phyllosilicates; as martite (blue-white, bottom centre); as a medium grained mosaic (top left) and as authigenic lanceolate euhedral crystals (top left) overgrowing detrital haematite.
Haematite as martite pseudomorphs after magnetite (two crystals, centre right) and as a rounded lath-shaped pseudomorph (bottom centre) is white and shows faint bireflectance (blue-white to white, centre right).
www.smenet.org /opaque-ore/plate42.htm   (538 words)

  
 BBC NEWS | Science/Nature | Spirit finds its pot of haematite
The Spirit rover on Mars has identified haematite at a location half way around the planet to where its twin buggy Opportunity found the same mineral.
Haematite is normally formed in the presence of water - certainly on Earth.
Spirit's discovery was made in front of the so-called Columbia Hill in a very odd-shaped rock dubbed the "Pot of Gold" by US space agency scientists.
news.bbc.co.uk /1/hi/sci/tech/3845953.stm   (477 words)

  
 Haematite and Iron Oxide (IARC Summary & Evaluation, Volume 1, 1972)
On the basis of epidemiological evidence, exposure to haematite dust may be regarded as increasing the risk of lung cancer development in man.
The risk is manifest in underground workers but not surface workers, and it is not known whether the excess risk is due to radioactivity in the air of mines, the inhalation of iron oxide or silica, or to a combination of these or other factors.
There is no evidence that iron-ore dust (haematite) or iron oxide influences the incidence of cancers at sites other than the lungs.
www.inchem.org /documents/iarc/vol01/haematite.html   (136 words)

  
 GeoArch: Experimental smelting - ores
Although rather different in physical properties, this imported ore is reasonably close to the less siliceous Llanharry and Miskin haematites in its chemical composition, as well as being fairly close to a Forest of Dean or Glamorgan goethite after roasting.
The Llanharry haematite was used for smelts 6 and 8.
The Sishen haematite was used for smelts 20, 21, 22, 23, 24 and 25.
www.geoarch.demon.co.uk /experimental/ores.html   (202 words)

  
 Geological Society - News - Mars — rust bucket of the Solar System
Grey haematite is not the sort of rust you might expect to find on a desert-dry planet like Mars.
The coarse-grained structure of grey haematite is important, says ASU's Jack Farmer, head of the NASA Astrobiology Institute's Mars Focus Group, because "to get that kind of coarsening of the crystallinity, you would need to have a reasonable amount of water available" where the haematite formed.
The peaks and valleys of this graph are characteristic of infrared emissions from haematite.
www.geolsoc.org.uk /template.cfm?name=MarsRust   (1012 words)

  
 Swaziland National Trust Commission - Iron Mines in Malolotja
Enquiries by Boshier among the Swazis elicited the information that haematite deposits had been mined in historic times and that it was the custom to fill in the excavation to avoid offending the spirits of the underworld.
The question was why would people interested in haematite go to all the trouble to mine a material that could easily be got by opencast.
At Lion Cavern it is estimated that at least 1 200 tons of soft haematite ore, rich in specularite, had been removed in ancient times.
www.sntc.org.sz /cultural/ironmine.html   (1177 words)

  
 Minotaur hits two new haematite systems
Minotaur says that regional drilling at Mt Woods intersected a new massive haematite body at the Proteus prospect, 6km southeast of Prominent Hill, and encountered a further haematite alteration system at the Triton prospect, another 1.5km to the south.
From the top of basement at 74m, the drillhole intersected a dense, massive haematite rock (average 38% iron) with quartz-carbonate veining that continued to 130m depth, followed by haematite- chlorite- and magnetite-altered sediments and breccia to 188m.
No part of this material may be reproduced, translated, transmitted, framed or stored in a retrieval system for public or private use without the written permission of the publisher.
www.ferret.com.au /articles/49/0c00f949.asp   (441 words)

  
 Swaziland National Trust Commission - Cultural Resources - Malolotja Archaeology, Lion Cavern
In one of the mines they were lying among and beneath thousands of tons of red iron oxide known as haematite.
The question was why would people interested in haematite go to all the trouble to mine a material that could easily be got by mining the surface.
These quarries were removed in the course of modern mining, but C14 dates obtained beforehand place the beginnings of iron ore mining at about 400 AD although it is thought that ancient opencast mines date to about 2 000 BC during the Late Stone Age.
www.sntc.org.sz /cultural/malarch.asp   (910 words)

  
 www.mineweb.net | co_releases Golden West Resources   (Site not responding. Last check: 2007-10-19)
Drill holes were drilled on 400 metre by 40 metre spacings and have confirmed that the mineralisation is continuous over a strike length of 2.6 kilometres and is open both along strike and down dip.
The drilling confirmed the high grade tenor of the haematite iron mineralisation combined with low levels of deleterious containments.
Test pitting and metallurgical testwork on several of the identified haematite scree deposits will be initiated with a view to determining reserves sufficient to allow mining to proceed.
www.mineweb.net /co_releases/511460.htm   (1691 words)

  
 Buy your healing haematite (hematite) crystal power bracelet online from Incense-Man
Haematite (often spelled hematite) takes its name from the Greek word "haima", meaning blood, because it tends to show red streaks when rubbed against a harder substance.
Healers use haematite to cleanse the blood and treat other blood disorders, including high blood-pressure.
Haematite is associated with the sixth and seventh
www.incense-man.co.uk /crystals4A.html   (130 words)

  
 [Jewelry making - Article 01169] - [Orchid] Magnetic Haematite?
They were little balls, magnetic enough that they stuck together, had the usual haematite lustre, except that under the 10x loupe the surfaces could be seen to be pitted, the pits not being close enough together to diminish the polish, but yet being fairly uniformly distributed over the (blueberry size) "haematite" balls.
Now, haematite is not naturally magnetic (or at least only marginally so, certainly not enough for two pieces to stick together).
I seem to remember however that haematite, heated sufficiently, transforms into magnetite, which can be strongly magnetized.
www.ganoksin.com /orchid/archive/200008/msg01169.htm   (310 words)

  
 Fuji Bead Jewellery
The Necklace is 19 inches in length with an easy to use magnetic catch. Each natural Haematite bead is 800 gauss and looks exquisite by itself or worn with the Fuji Bracelet as a set. Magnetic Necklaces gently apply MAGNETIC THERAPY to the high stress/tension areas of the upper back, neck and shoulders.
The Bracelet is self-coiling Bracelet which does not have a clasp. This is designed to hang loose. Each Haematite bead is 800 gauss. The Fuji Bracelet looks beautiful by itself or worn in combination with the Fuji necklace.
Limberol Cream, a new joint relief cream using the all-natural patented ingredient Celadrin and Menthol. Limberol Cream is a natural chemical free formulation containing Celadrin and Menthol and Vitamin E anti-oxidants in a natural formulation which has been refined to create a smooth non-greasy cream.
www.head2toes.co.uk /acatalog/Fuji_Bead_Jewellery.html   (174 words)

  
 Selected gemstone jewellery for the Gothic Lifestyle.
Haematite is very powerful stone, effective in drawing negativity and illness from the body.
Also useful to wear haematite when performing spells for protection or for grounding.
Increases courage, reduces a rapid pulse and strengthens the heart.
www.vampireshop.co.uk /gemstone_jewelry.html   (219 words)

  
 MAGNETIC THERAPY™ - Haematite Jewellery
Look at this beautiful selection of Magnetic Haematite Bracelets which will grace any wrist.
These desirable necklaces have 1200 gauss haematite beads embedded within each stunning design.
Black haematite beads, mixed with exotic turquoise semi precious stones, produce a unique design that looks outstanding on any person.
www.magnetictherapy.co.uk /mcp/HAEMATITE_JEWELLERY.html   (130 words)

  
 IngentaConnect Detrital remanent magnetization in haematite-bearing Neoproterozo...
Because palaeomagnetic negative directions are very close to the present-day dipolar field, a rock magnetic and SEM study was conducted in order to check the primary nature of the remanent magnetization and to identify the nature and origin of the remanence carriers.
In some sites, a mixture of haematite and magnetite carries the remanence of both polarities.
These results reinforce the low palaeolatitude of the Amazon craton at the time of the Marinoan ice age.
www.ingentaconnect.com /content/bsc/gji/2005/00000163/00000002/art00005   (287 words)

  
 Very Elegant Juliana D & E Faux Haematite Japanned Necklace & Earrings - J043
This is a beautifully elegant Juliana set of necklace and clip on earrings, in a japanned setting, with faux haematite skinny navettes and fancy concave oval stones, together with a faux jet round cabochon in the centre of the necklace, and smoky grey rhinestones, for accent and all along the length of the necklace.
It is not signed, as Juliana jewellery (made by De Lizza & Elster) was marked only with a paper hang-tag.
The pieces really sparkle, and I think you can see from the pictures that the faux haematite stones are like little mirrors, with a very reflective silvery-grey finish.
www.rubylane.com /shops/wizardjewels/item/J043   (196 words)

  
 Haematite / Hematite Crystals|Tumble Stones F-M|Crystals & crystal healing properties|easycrystals.co.uk
Haematite / Hematite CrystalsTumble Stones F-MCrystals and crystal healing propertieseasycrystals.co.uk
Physically it aids the absorption of iron and the formation of healthy blood, improving the oxygen supply to the body and promoting good health.
Select here to buy Haematite / Hematite tumble stones with no extras required.
www.easycrystals.co.uk /itempages/000011.html   (115 words)

  
 Furniture Restoration Supplies & Free Restoration Tips - Liberon Haematite 500ml
Haematite is ideal for coloring bright iron and steel a gun metal blue/fl allowing you to match new items with old.
Remove and clean thoroughly any residual grease or oil from the surface including fingerprints.
Brush Applied: Apply Haematite directly to the surface of the item using either cotton wool or a brush and watch the surface quickly change color.
www.kingdomrestorations.com /catalog_i993006.html   (235 words)

  
 Juliana D & E Fabulous Deep Red and Faux Haematite Necklace - J068
Yet another gorgeous Juliana design (made by De Lizza & Elster), this huge necklace has pear-shaped and round faux haematite cabochons, and deep rich Siam red rhinestones and navettes, together with lots of red aurora borealis rhinestones.
It is in excellent condition, and all the stones are prong-set (the navettes and haematite stones are open-backed).
I have to apologise for the reflection of my hand and camera on nearly all of the haematite cabochons in the photos!
www.rubylane.com /shops/wizardjewels/item/J068   (224 words)

  
 Rune Sets: Haematite Rune Set @ SpiritAdventures.co.uk
The set also comes with a pouch and detailed instruction booklet describing what each rune means and how to cast the runes.
Benefits of haematite: Enhances mental activity and balances the brain.
Wouldn’t it be great to know what other customers thought of a product before you purchased it?
www.spiritadventures.co.uk /item--Haematite-Rune-Set--run004.html   (202 words)

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