
	Where results make sense

Topic: Tremolite

Related Topics

Natrolite

Body surface area

Cerussite

Vinyl chloride

Ether

Tourmaline

Rutile

Crystal habit

List of minerals

Butyric acid

Nitrogen dioxide

Curonia

DDT

Air pollution

Amambay

	tremolite.htm (Site not responding. Last check: 2007-11-07)
		Pale green tremolite growing in metachert nodules in marble, Grand View, WI ASHLAND COUNTY: Tremolite is often found in the Bad River Dolomite such as outcrops "under the railroad bridge at Penokee Gap" along the Bad River in SE NW sec.
		FLORENCE COUNTY: Tremolite occurs with diopside in a drill core from the Bass Lake area in T.38N.
		ONEIDA COUNTY: Tremolite is found in the sequence of talc and calc-silicate-rich rocks that host the Lynne Au-Ag-Zn-Pb massive sulfide ore body in the SW corner of Oneida County.
	www.uwrf.edu /~wc01/tremolite.htm (396 words)

	ATSDR - Asbestos - Tremolite Asbestos (Site not responding. Last check: 2007-11-07)
		Tremolite was detected in 3 of 8 samples of commercial chrysotile using a method with detection limits of 0.01% to 0.05% that involved chrysotile digestion and energy-dispersive X-ray analysis (Addison and Davies 1990).
		Tremolite asbestos fibers have often been detected at higher concentrations than chrysotile fibers in autopsied lung tissues of certain miners and millers who were chronically exposed to chrysotile ores that contained only very small amounts of tremolite asbestos (see Case 1994 for review).
		Tremolite fibers represented the predominant fiber type in bronchoalveolar lavage fluid samples from 64 Turkish subjects with expected environmental exposure to asbestos fibers; concentrations of fibers in the samples were similar to concentrations in samples from subjects with known occupational exposure to asbestos (Dumortier et al.
	www.atsdr.cdc.gov /asbestos/doc_tremolite.html (14632 words)

	TREMOLITE Chapter17. Inosilicates - chain silicates
		Tremolite is a common mineral in the Franklin Marble, occurring with other silicates in aggregates and as isolated crystals.
		Tremolite is colorless to white or gray, with vitreous luster, normal amphibole prismatic cleavages, and a density of approximately 3.1 g/cm
		The tremolite studied by Klein and Ito (1968; #4) was associated with rhodochrosite and calcite in a vein in franklinite-calcite ore in which the tremolite is separated from the ore by carbonates.
	simplethinking.com /dunn/ch17/tremolite.stm (431 words)

	Thaigem.com \| Info Center \| Gemstone Discovery \| Tremolite
		Tremolite is actually a group of minerals that occur in white, light to dark gray, light yellow, light to dark green, light pink and light purple colors.
		The name Tremolite is also used in referring to the colorless to white, sometimes gray variety of the group.
		Tremolite was named after the first locality it was discovered in, the Tremola Valley.
	www.thaigem.com /dis_tremolite.asp (189 words)

	TREMOLITE - LoveToKnow Article on TREMOLITE
		The color is white or grey, but when iron is present it is green, then forming a passage to actinolite.
		The hardness is 51/2 and the specific gravity 3~O. Tremolite is a characteristic mineral of crystalline limestories, especially dolQmitic limestones, but also occurs as an alteration-product of olivine in basic igneous rocks.
		Typical specimens have long been known from the white crystalline dolomite of Campolongo in the St Gotthard region, Switzerland, near to which is the Tremola Valley, after which the min.eral was named in 1796.
	www.1911encyclopedia.org /T/TR/TREMOLITE.htm (174 words)

	Tremolite and Actinolite
		Tremolite is found rarely as simple isolated gray or white crystals in the limestone wall rock of both ore bodies.
		It is common in the form of asbestos, the white or pinkish fibers being mixed with calcite in stiff columnar masses that form a transverse filling of secondary veins.
		In many references to supposed tremolite from the district the mineral is doubtless edenite (see page 72); also a part of the diopside and sahlite of earlier lists was probably edenite, though a part of it may have been tremolite.
	simplethinking.com /palache/tremolite_and_actinolite.stm (243 words)

	Chrysotile and tremolite asbestos fibres in the lungs and parietal pleura of Corsican goats -- Dumortier et al. 59 (9): ...
		Chrysotile and tremolite asbestos fibres in the lungs and parietal pleura of Corsican goats -- Dumortier et al.
		Chrysotile and tremolite asbestos fibres in the lungs and parietal pleura of Corsican goats
		Environmental airborne tremolite asbestos pollution and pleural plaques in Afghanistan.
	oem.bmjjournals.com /cgi/content/full/59/9/643 (1903 words)

	Canadian Rockhound: Not so tremulous about tremolite (Site not responding. Last check: 2007-11-07)
		Though actinolite and tremolite often occur in silky, fibrous, 'asbestosform' masses and were the first minerals to be known commercially as "asbestos" (Clark and Kirk, 1995, p.
		Clear to white lustrous blades of tremolite radiate from within a colourfully orange calcite matrix (Figure 4).
		Tremolite and actinolite form under conditions of moderately high temperature and pressure in a watery environment often during the metamorphosis of dolomite and limestones (Pough, 1988, p.
	www.canadianrockhound.ca /2004/01/cr0408102_tremolite.html (1501 words)

	Epidemiological Significance of Mineral Fiber Persistence in Human Lung Tissue (Site not responding. Last check: 2007-11-07)
		Later studies showed over time the concentration of tremolite fibers in lung tissue of miners and millers exceeded that of chrysotile; the same was true for certain textile workers (1).
		Tremolite and chrysotile were found in approximately equal quantities with counts which correlated significantly with accumulated dust exposure: chrysotile, 0.40 (p = 0.005); tremolite 0.49 (p = 0.0005).
		In 13 adequately matched pairs, selected from the 55 lung analyses, the ratios of tremolite to chrysotile ranged from 0 to 8.3 at Asbestos (mean 1.5, median 0.7) and from 0 to 9.0 at Thetford (mean 4.9, median 1.7).
	ehp.niehs.nih.gov /members/1994/Suppl-5/mcdonald-full.html (3544 words)

	Tremolite Decomposition on Venus
		We experimentally determined that the greater stability of F-bearing tremolite, suggested by thermodynamics, is reflected in its decomposition kinetics.
		We measured the decomposition rate of F-bearing tremolite and show that its decomposition is several times greater than ten times slower than that of OH-tremolite.
		We also show that F-bearing tremolite is depleted in fluorine after decomposition and that fluorine is lost as a volatile species such as HF gas.
	solarsystem.wustl.edu /03abstracts.htm (579 words)

	Study suggests Venus could have been wet planet \| SpaceRef - Your Space Reference
		Tremolite is a mineral that forms in the presence of water.
		If tremolite or some other hydrous mineral can be detected on the surface of Venus, then it can be concluded that Earth's once-wet neighbor lost its water over time, putting to rest an enduring question in planetary science.
		In the case of tremolite, it is a metamorphic mineral generally found in dolomitic-type limestone.
	www.spaceref.com /news/viewpr.html?pid=3659 (827 words)

	What is tremolite asbestos and why is it so deadly?
		The effects of exposure to tremolite asbestos has not been studied as thoroughly as with other asbestos minerals, but very preliminary unpublished research suggests that autoimmune diseases such as psoriasis, lupus, and arthritis sometimes precede the onset of symptoms of tremolite asbestosis and tremolite-induced mesothelioma cancer.
		In the Libby, Montana area, tremolite asbestos is associated with a hydrated mica ore mineral called vermiculite.
		The tremolite dust that coats the vermiculite flakes is so fine that it is usually invisible to the unaided eye.
	www.scn.org /~bh162/asbestos2.html (1305 words)

	Tremolite and other fibrous minerals (Site not responding. Last check: 2007-11-07)
		This sample of tremolite is displayed in the Smithsonian Museum of Natural History.
		Tremolite is a fibrous mineral, one of those which were given the commercial name asbestos.
		These samples of tremolite show that it has other habits of formation other than the fibrous one.
	hyperphysics.phy-astr.gsu.edu /hbase/minerals/asbestos.html (302 words)

	Jesse Helland
		Tremolite is found in many marble samples, and ultramafic rocks.
		Tremolite crystals are monoclinic and are usually in fibrous, radiating aggregates.
		Tremolite is and amphibole with cleavage (56 and 124 degrees) 10 to 21 degree extinction anglew in prismatic section.
	www.und.nodak.edu /instruct/mineral/geol318/webpage/helland (492 words)

	The mineral tremolite
		Tremolite should never be brought near the mouth.
		Tremolite has many good localities, but only the finest will be mentioned here.
		Tremolite also occurs in the St. Lawrence Co. area in New York, but in Fowler and DeKalb (St. Lawrence Co.) the lilac variety, known as Hexagonite, is abundant.
	www.minerals.net /mineral/silicate/ino/amphibol/tremolit/tremolit.htm (577 words)

	TREMOLITE (Calcium Magnesium Silicate Hydroxide)
		Tremolite is a relatively common mineral in some metamorphic rocks.
		Tremolite's formula is often written as the same as actinolite (with iron and magnesium), but specimens of tremolite can be found quite pure (that is, free of iron) and so here the formula reflects the pure end of the series.
		Tremolite is an important temperature indicator for petrologists.
	mineral.galleries.com /minerals/silicate/tremolit/tremolit.htm (578 words)

	California Code of Regulations, Title 8, Section 5208.1. Non Asbestiform Tremolite, Anthophyllite, and Actinolite.
		(3) Non-asbestiform tremolite, anthophyllite, and actinolite-containing cement, mortar, coating, grout, plastic, or similar material shall not be removed from bags, cartons, or other containers without being wetted, unless it is enclosed and/or ventilated to effectively control airborne fibers as specified in section 5208.1(a).
		(1) Laundering of non-asbestiform tremolite, anthophyllite, and actinolite-contaminated clothing shall be done so as to prevent the release of airborne non-asbestiform tremolite, anthophyllite, and actinolite fibers in excess of the exposure limits prescribed in section 5208.1(a).
		Any employee found to have been exposed to non-asbestiform tremolite, anthophyllite, and actinolite fibers in excess of either the permissible limits prescribed by subsection (a) shall be notified in writing of the exposure within 5 days of the finding.
	www.dir.ca.gov /title8/5208_1.html (2061 words)

	Define Tremolite : powered by In Dictionary (InDicitonary.com) (Site not responding. Last check: 2007-11-07)
		Some common varieties are tremolite, actinolite, asbestus, edenite, hornblende (the last name being also used as a general term for the whole species).
		Amphibole is a constituent of many crystalline rocks, as syenite, diorite, most varieties of trachyte, etc. See Hornblende.
		tremolite n : a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos
	www.indictionary.com /define/Tremolite (341 words)

	The role of environmental and occupational exposures in Turkish immigrants with fibre-related disease -- Dumortier et ...
		Table 5 Occurrence of tremolite in bronchoalveolar lavage fluid (BALF) of Turkish immigrants according to geographical origin.
		1.— Tremolite fibre concentration in bronchoalveolar lavage fluid (BALF) of Turkish immigrants and residents with environmental asbestos exposure according to duration and cessation of exposure 12 shown on a semilogarithmic scale.
		An epidemiological study in an Anatolian village in Turkey environmentally exposed to tremolite asbestos.
	erj.ersjournals.com /cgi/content/full/17/5/922 (2772 words)

	Tremolite
		Tremolite xls from Mo i Rana occur in an amphibolite outcrop and are often extremely well developed and clustered in nice associations.
		In this gallery nice miniature and large miniatures specimens of Tremolite xls floaters or on matrix are offered at very interesting prices.
		Nice specimen of Tremolite xls composed by some crystal growed in parallel associaten and clustered in a nice group.
	www.smartminerals.com /norvegia/tremolite.htm (245 words)

	MORPHOLOGICAL CHARACTERIZATIONS OF AMPHIBOLE AND AMPHIBOLE-ASBESTOS FROM LIBBY, MONTANA U.S.A. BY POLARIZED LIGHT ... (Site not responding. Last check: 2007-11-07)
		Based on morphology, 36% of the Libby amphibole, 19% of the NIST tremolite, and 0% of the non-asbestos tremolite were asbestos.
		Fifty single particles of the Libby amphibole, 25 of the NIST tremolite, and 10 of the non-asbestos tremolite were mounted on glass fibers and examined with the aid of a spindle stage.
		These observations show the non-asbestos samples mainly rested on their (110) surfaces, although the smaller of these were flattened on (100); the small fragments in the NIST tremolite and Libby amphibole were predominantly flattened on (100).
	gsa.confex.com /gsa/2002AM/finalprogram/abstract_41127.htm (467 words)

	New Page 1 (Site not responding. Last check: 2007-11-07)
		We determined the decomposition rate of tremolite and fluorine-rich tremolite by isothermally heating powdered samples in dry flowing CO
		We also find that F-rich tremolite takes longer to decompose than F-free tremolite and that fluorine is depleted in the reacted samples.
		The kinetic stability of tremolite was surprising because thermodynamics predicts that it is unstable and should decompose at Venus’ surface temperature and atmospheric water vapor pressure (740 Kelvin and 0.003 bar).
	solarsystem.wustl.edu /GSAabstr.htm (263 words)

	Tremolite and Mesothelioma -- ROGGLI et al. 46 (5): 447 -- Annals of Occupational Hygiene
		Frequency distribution for four of the fiber types analyzed in this study: tremolite, TAA (tremolite, actinolite and anthophyllite), talc and chrysotile.
		Tremolite was detected in 166 of 312 cases (53%), with a median
		Regression analysis for the relationship between the observed concentration of tremolite (y-axis, log transformation) and the predicted concentration of tremolite based on talc and chrysotile concentrations (x-axis).
	annhyg.oxfordjournals.org /cgi/content/full/46/5/447 (2458 words)

	Assessment of Environmental Asbestos Exposure in Turkey by Bronchoalveolar Lavage -- DUMORTIER et al. 158 (6): 1815 -- ...
		Tremolite and chrysotile were the most common types of asbestos identified.
		Total asbestos and tremolite concentrations are lower in controls than in exposed subjects (p < 0.001) (Table 4).
		are tremolite and, to a lesser extent, chrysotile.
	ajrccm.atsjournals.org /cgi/content/full/158/6/1815 (4791 words)

	[48P.06] Tremolite Dehydroxylation and the History of Water on Venus (Site not responding. Last check: 2007-11-07)
		The surface of Venus is a hot, dry desert and thermodynamic models predict that hydrous minerals (with a few exceptions) are unstable on its surface.
		The results were extrapolated to Venus' present-day surface temperature to calculate the maximum lifetime of tremolite.
		Tremolite dehydroxylation was studied at temperatures from 1090-1238K in CO2 and N2.
	www.aas.org /publications/baas/v30n3/dps98/61.htm (182 words)

	Association between chrysotile exposure and mesothelioma (Site not responding. Last check: 2007-11-07)
		In their analysis of the implications of the 37 mesothelioma cases identified up until 1992 in the 11,000 person cohort, McDonald and McDonald (1995) found that they were concentrated in workers from specific areas of the mines.
		Further post-mortem lung tissue analysis showed that workers in these areas had tremolite lung content four times higher than those workers in other areas of the mines studied, suggesting that the rare cases of mesothelioma among chrysotile miners are mainly, if not wholly, due to tremolite exposure.
		Churg (1988) writes, "whether tremolite or chrysotile be the critical agent, these observations suggest that chrysotile ore, in both crude and processed forms, does cause mesothelioma in man, but that it is an extremely weak carcinogen and that in today's terms, the doses required are extremely high.
	www.mesotheliomahelp911.com /mesothelioma-tremolite.htm (364 words)

	What our tests found and what it means (Site not responding. Last check: 2007-11-07)
		Tremolite: What our tests found, and what the risks are
		This scanning electron micrograph (click to see larger image) is a representative example of the asbestos found in the crayons analyzed by Lab/Cor for the Post-Intelligencer.
		For example, chrysotile, one of the most common commercially used asbestos fibers, can be coughed out of the lungs far more easily then the longer and sharper tremolite fibers contaminating some talc and vermiculite.
	www.seattle-pi.com /crayons/tremolite.shtml (414 words)

	index.html (Site not responding. Last check: 2007-11-07)
		In 1995, Science published a letter to the editor submitted by McDonald and McDonald which indicated that exposure to tremolite, and not chrysotile was the likely cause of mesothelioma cases present in miners and millers who worked in Thetford Mines, Quebec.
		(18) The repetition of this error has given the tremolite hypothesis the guise of sound science, but it is the replication of data, not assertions, that confers validity to scientific evidence.
		Medical literature relying on the central-peripheral tremolite distinction continues to be used as an argument to promote the sale of Canadian chrysotile in the developing world.
	www.brown.edu /Courses/Bio_Community_Health168C (1637 words)

	Lieff Cabraser: Libby Asbestos Class Action Litigation
		The class action suit alleged a pattern and practice of unsafe mining operations and the longstanding concealment, by W. Grace and Co., of the true hazards, and continuing dangers, of tremolite exposure.
		Tremolite asbestos is an especially deadly form of asbestos because it consists of tiny needle like fibers which are sharply pointed and easily penetrate the linings of the lungs.
		The lungs are unable to remove tremolite asbestos that has speared into lung tissue, and the tremolite spears cannot be coughed out or washed out of the lung tissues by blood.
	www.lieffcabraser.com /libby.htm (1433 words)

Try your search on: Qwika (all wikis)