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Giorgiosite Mineral Data + |
General Giorgiosite Information |
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| Mg5(CO3)4(OH)2·5(H2O) | |||
| Molecular Weight = 485.65 gm | |||
| Magnesium 25.02 % Mg 41.50 % MgO | |||
| Hydrogen 2.49 % H 22.26 % H2O | |||
| Carbon 9.89 % C 36.25 % CO2 | |||
| Oxygen 62.59 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mg5(CO3)4(OH)2·5(H2O) | |||
| Occurs on the lava. Metastable phase between nesquehonite and hydromagnesite. | |||
| Valid Species (Pre-IMA) 1905 | |||
| Alphroessa, Santorin, Greece. Link to MinDat.org Location Data. | |||
| Named for one of the cones, Giorgios, created during the eruption at Santorin islands in 1866. | |||
Giorgiosite Image | |||
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Giorgiosite Crystallography |
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| MonoclinicSpace Group: ? | |||
| By Intensity(I/Io): 11.8(1), 3.28(0.7), 3.38(0.7), | |||
Physical Properties of Giorgiosite |
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| White. | |||
| 2.155 - 2.185, Average = 2.17 | |||
| Encrustations - Forms crust-like aggregates on matrix. | |||
| Fibrous - Crystals made up of fibers. | |||
| Spherical - Spherical, rounded aggregates. | |||
| white | |||
Optical Properties of Giorgiosite |
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| CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC) KPDmeas= 0.2329,KC= 0.2351 |
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| Biaxial (?), a=1.498, g=1.513, bire=0.0150 | |||
Calculated Properties of Giorgiosite |
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relectron=2.22 gm/cc |
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| Fermion Index = 0.02641 Boson Index = 0.97359 |
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PEGiorgiosite = 0.75 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Giorgiosite is Not Radioactive |
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Giorgiosite Classification |
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| 16b.7.2.2 (16b)Carbonates - Hydroxyl or Halogen | |||
| (16b.7)Dana Type | |||
| (16b.7.2)Dana Group | |||
| V/E.01-30 V - Nitrates, Carbonates and Borates | |||
| V/E - Water-bearing carbonates with unfamiliar anions | |||
| V/E.01 - Hydromagnesite - Brugnatellite series | |||
Other Giorgiosite Information |
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| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Giorgiosite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Giorgiosite using: Visit our Advertisers for Giorgiosite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals T G Fine Minerals Wrights Rock Shop Translate Giorgiosite Mineral Data : Ask about Giorgiosite here : Print or Cut-and-Paste your Giorgiosite Specimen Label here :
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