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Gageite Mineral Data |
General Gageite Information |
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(Mn,Mg,Zn)42Si16O54(OH)40 | ||
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Molecular Weight = 3,958.95 gm | ||
Magnesium 7.74 % Mg 12.83 % MgO | |||
Manganese 34.97 % Mn 45.15 % MnO | |||
Zinc 6.94 % Zn 8.63 % ZnO | |||
Silicon 11.35 % Si 24.28 % SiO2 | |||
Hydrogen 1.02 % H 9.10 % H2O | |||
Oxygen 37.99 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
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Mn2+25.2Mg12.6Zn4.2Si16O54(OH)40 | ||
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Metamorphosed zinc-manganese deposit. | ||
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Valid Species (Pre-IMA) 1911 | ||
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Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data. | ||
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Named for Robert B. Gage, of Trenton, New Jersey, USA, who analyzed the first specimens. | ||
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Gageite ![]() |
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Gageite Image | |||
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Gageite Crystallography |
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a:b:c =1.0071:1:0.6993 | ||
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a = 14.17, b = 14.07, c = 9.84, Z = 1; alpha = 76.5°, beta = 76.6°, gamma = 86.9° V = 1,852.97 Den(Calc)= 3.55 | ||
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Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1 | ||
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By Intensity(I/Io): 6.87(1), 2.707(0.8), 2.758(0.8), | ||
Physical Properties of Gageite |
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Colorless, Pink. | ||
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3.41 | ||
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Transparent | ||
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Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | ||
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Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Gageite |
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CI meas= -0.022 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.015 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2065,KPDmeas= 0.2144,KC= 0.2097 Ncalc = 1.72 - 1.74 |
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Biaxial (-), a=1.723, b=1.734, g=1.736, bire=0.0130 | ||
Calculated Properties of Gageite |
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Bulk Density (Electron Density)=3.44 gm/cc note: Specific Gravity of Gageite =3.54 gm/cc. |
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Fermion Index = 0.01 Boson Index = 0.99 |
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PEGageite = 12.95 barns/electron U=PEGageite x rElectron Density= 44.52 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Gageite is Not Radioactive |
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Gageite Classification |
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65.03.02.02b (65)Inosilicate Single-Width Unbranched Chains, W=1 | ||
(65.03)with chains P=4 | |||
(65.03.02)Gageite group | |||
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09.DH.35 09 - SILICATES (Germanates) | ||
09.D - Inosilicates* Structural terminology according to Liebau (1985) | |||
09.DH -Inosilicates with 4-periodic single chains, Si4O12 | |||
Other Gageite Information |
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NAME( Ford32) PHYS. PROP.(Am.Min.,Vol.72,p382-391,1987) OPTIC PROP.(Ford32) | ||
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Links to other databases for Gageite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Franklin Minerals(Palache) 4 - GeoScienceWorld 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - Mineralienatlas (Deutsch) 11 - Online Mineral Museum 12 - QUT Mineral Atlas 13 - Ruff.Info Search for Gageite using: Visit our Advertisers for Gageite : Ask about Gageite here : Print or Cut-and-Paste your Gageite Specimen Label here :
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