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Serendibite Mineral Data |
General Serendibite Information |
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Ca2(Mg,Al)6(Si,Al,B)6O20 | ||
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Molecular Weight = 706.15 gm | ||
Calcium 11.35 % Ca 15.88 % CaO | |||
Magnesium 15.49 % Mg 25.68 % MgO | |||
Aluminum 12.61 % Al 23.82 % Al2O3 | |||
Silicon 14.32 % Si 30.63 % SiO2 | |||
Boron 0.92 % B 2.96 % B2O3 | |||
Oxygen 45.31 % O | |||
______ ______ | |||
100.00 % 98.98 % = TOTAL OXIDE | |||
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Ca2Mg4.5Al1.5Si3.6Al1.8B0.6O20 | ||
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In skarns, affected by boron metasomatism, along the contact between carbonate rocks and granite, tonalite, or granulite. | ||
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Valid Species (Pre-IMA) 1903 | ||
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Gangapitiya near Ambakotte, Ceylon. Link to MinDat.org Location Data. | ||
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From the old Arabic name, Serendib, for Sri Lanka (Ceylon). | ||
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Serendibite + Pronunciation ![]() |
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ICSD 72936 | ||
PDF 29-343 | |||
Serendibite Image | |||
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Serendibite Crystallography |
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a:b:c =0.963:1:0.8306 | ||
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a = 10.043, b = 10.428, c = 8.662, Z = 2; alpha = 106.37°, beta = 96.02°, gamma = 124.4° V = 714.20 Den(Calc)= 3.28 | ||
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Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1 | ||
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By Intensity(I/Io): 2.53(1), 2.56(0.8), 2.9(0.8), | ||
Physical Properties of Serendibite |
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None | ||
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Blue, Blue green, Gray blue, Light yellow, Dark blue. | ||
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3.4 | ||
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Transparent to translucent | ||
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Granular - Generally occurs as anhedral to subhedral crystals in matrix. | ||
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Twinning Common - Crystals are usually twinned. | ||
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6-7 - Orthoclase-Quartz | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Serendibite |
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CI meas= -0.013 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.004 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2033,KPDmeas= 0.2069,KC= 0.2041 Ncalc = 1.69 - 1.71 |
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Biaxial (+), a=1.701, b=1.703, g=1.706, bire=0.0050, 2V(Calc)=80, 2V(Meas)=80. Dispersion strong, r < v. | ||
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yellow or green. | ||
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yellow or green. | ||
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blue or blue. | ||
Calculated Properties of Serendibite |
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Bulk Density (Electron Density)=3.43 gm/cc note: Specific Gravity of Serendibite =3.46 gm/cc. |
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Fermion Index = 0.02 Boson Index = 0.98 |
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PESerendibite = 2.67 barns/electron U=PESerendibite x rElectron Density= 9.17 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Serendibite is Not Radioactive |
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Serendibite Classification |
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69.02.01a.06 (69)Inosilicate Chains with Side Branches or Loops | ||
(69.02)with P>2 | |||
(69.02.01a)Aenigmatite and related species (Aenigmatite subgroup) | |||
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09.DH.45 09 - SILICATES (Germanates) | ||
09.D - Inosilicates* Structural terminology according to Liebau (1985) | |||
09.DH -Inosilicates with 4-periodic single chains, Si4O12 | |||
Other Serendibite Information |
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NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | ||
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Links to other databases for Serendibite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Serendibite using: Visit our Advertisers for Serendibite : Ask about Serendibite here : Print or Cut-and-Paste your Serendibite Specimen Label here :
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