{ function printSpecial() Encrustations - Forms crust-like aggregates on matrix. Hydromagnesite. M - Menu if (document.getElementsByTagName != null) Mindat.org's Discussion Groups return; Visit our Advertisers for Hydromagnesite : Ask about Hydromagnesite here : var headTags = document.getElementsByTagName("head"); pH (1% suspension): 9.5 Bulk Density: 130-140 g/l Hydromagnesite has the following chemical formula and thermally decomposes releasing water [20] and carbon dioxide, leaving a solid residue of magnesium oxide. Location: KCA Quarry, San Benito County, California, USA. F - Fit to Screen © Jeff Weissman / Photographic Guide to Mineral Species, Mouse Light magnesium carbonate or hydromagnesite is made by precipitation from a boiled solution of magnesium sulfate and sodium carbonate. var printReadyElem = document.getElementById("printReady"); Water chemistry and hydrochemical processes assessment in zones with Land slip in Buzău and Vrancea, SE Romania. Scale: See Photo. printWin.print(); Synonyms. Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. General Hydromagnesite Information : Chemical Formula: Mg5(CO3)4(OH)2•4(H2O) Composition: Molecular Weight = 467.64 gm Magnesium 25.99 % Mg 43.09 % MgO Hydrogen 2.16 % H 19.26 % H 2 O Carbon 10.27 % C 37.64 % CO 2 Oxygen 61.58 % O _____ _____ 100.00 % 100.00 % = TOTAL OXIDE: Empirical Formula: Mg 5 (CO 3) 4 (OH) 2 •4(H 2 O) IMA Status: urchinTracker(); Print or Cut-and-Paste your Hydromagnesite Specimen Label here : Location: Lobming, Styria, Austria. Molecular Formula. Dbl Clk - Start-Stop Rotation Help on Above. Rockhounds Discussion Group on Yahoo Groups Biaxial (+), a=1.523, b=1.527, g=1.545, bire=0.0220, 2V(Calc)=52, 2V(Meas)=30-90. NSC83511. _uacct = "UA-3067463-1"; html += printReadyElem.innerHTML; I - Indicies Drag2 - Resize Mineral Discussion Forum from Fabre Minerals - also available in The Collaborative International Dictionary of English, En utilisant des dictionnaires dans votre site, Dictionnaires et Encyclopédies sur 'Academic'. else I, 2000, p.99-101 Carbonate hydraté naturel de magnésium (minerai de ce métal). { - Start-Stop Rotation html += '\n\n\n'; Warning: this large pop-up is very compute intensive and if (printReadyElem != null) if (headTags.length > 0) Original Rockhounds Discussion Group printWin.document.close(); { S - Stereo alert("Sorry, the print ready feature is only available in modern browsers. hydromagnésite [idʀomaɲezit] n. f. ÉTYM. RMB - Cycle Display Modes Keyboard if (gAutoPrint) Romanian Journal of Mineral Deposits, 79, Suppl. Carbonate hydraté naturel de … Further reading “Hydromagnesite” in David Barthelmy, Webmineral Mineralogy Database, 1997–. Mg 5(CO 3) 4(OH) 2.4H 2O → 5MgO + 4CO 2 + 5H 2O Huntite has the following chemical formula and … of Minerals,2nd ed.,1990) OPTIC PROP. Ask-A-Mineralogist from the Mineralogical Society of America } PROP.(Enc. Español var printWin = window.open("","printSpecial", 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width=350,height=350'); WLN: MG C-O3. Drag1 - Manipulate Crystal { Fluorescent, Short UV=green, Long UV=bluish white. © Thomas Witzke / Abraxas-Verlag, Comments: Tan spherical pokrovskite on serpentinite rock with white hydromagnesite sprays. printWin.document.open(); 4H2O Mineralklasse Carbonate 05.DA.05 (nach Strunz) 16b.07.01.01 (nach Dana …   Deutsch Wikipedia, Magnesium hydroxide — IUPAC name Magnesium hydroxide …   Wikipedia, Magnesium carbonate — Magnesium carbonate …   Wikipedia. else D. i.; de hydro , et magnésite. Comments: White, blocky crystals of hydromagnesite. html += '\n\n'; ♦ Minér. NSC-83511. hydromagnésite nom féminin Carbonate hydraté naturel de magnésium. Magnesium carbonate, MgCO3. } } "); { alert("Could not find the printReady section in the HTML"); printWin.document.write(html); may not work well with some computers. if (document.getElementById != null) hydromagnesite (plural hydromagnesites) A hydrated magnesium carbonate mineral with the chemical formula Mg 5 (CO 3) 4 (OH) 2.4H 2 O, used as a fire retardant. Mineral Chemical Formula Approximate onset of Decomposition (°C) Nesquehonite MgCO 3.3H 2 O 70 – 100 Gypsum CaSO 4.2H 2 O 60 – 130 Magnesium phosphate octahydrate Mg 3 (PO 4) 2.8H 2 O 140 – 150 Aluminium hydroxide Al(OH) 3 180 – 200 Hydromagnesite Mg 5 (CO 3) 4 (OH) 2.4H 2 O 220 – 240 Dispersion none. html += headTags[0].innerHTML; NAME( Duda&Rejl90) PHYS. { Acicular - Occurs as needle-like crystals. MgCO3· nH2O or CH2MgO3+2. (Ford32). }, Jeff Weissman / Photographic Guide to Mineral Species, Castle Point, Hoboken, Hudson County, New Jersey, USA Link to , a = 10.11, b = 8.94, c = 8.38, Z = 2; beta = 114.58° V = 688.78 Den(Calc)= 2.25. } var html = '\n\n'; Scale: Picture size 5 mm. var gAutoPrint = true; // Flag for whether or not to automatically call the print function }