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Syngenite Mineral Data |
General Syngenite Information |
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K2Ca(SO4)2•(H2O) | ||
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Molecular Weight = 328.42 gm | ||
Potassium 23.81 % K 28.68 % K2O | |||
Calcium 12.20 % Ca 17.08 % CaO | |||
Hydrogen 0.61 % H 5.49 % H2O | |||
Sulfur 19.53 % S 48.76 % SO3 | |||
Oxygen 43.85 % O | |||
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100.00 % 100.00 % = TOTAL OXIDE | |||
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K2Ca(SO4)2•(H2O) | ||
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Diagenetic component of marine salt deposits. | ||
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Valid Species (Pre-IMA) 1872 | ||
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Kalush salt deposit, Ukraine. Link to MinDat.org Location Data. | ||
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Named from the Greek for related, for the chemical resemblance to polyhalite. | ||
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Syngenite + Pronunciation ![]() |
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ICSD 27748 | ||
PDF 28-739 | |||
Syngenite Image | |||
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Syngenite Crystallography |
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a:b:c =1.3394:1:0.8415 | ||
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a = 9.55, b = 7.13, c = 6, Z = 2; beta = 105° V = 394.63 Den(Calc)= 2.76 | ||
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m | ||
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By Intensity(I/Io): 2.86(1), 3.16(0.75), 9.52(0.6), | ||
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Physical Properties of Syngenite |
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{???} Perfect | ||
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Colorless, White, Light yellow. | ||
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2.58 | ||
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Transparent to translucent | ||
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Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
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2.5 - Finger Nail | ||
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Non-fluorescent. | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Syngenite |
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CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.059 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1854,KPDmeas= 0.1983,KC= 0.197 Ncalc = 1.51 - 1.54 |
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Biaxial (-), a=1.501, b=1.5166, g=1.5176, bire=0.0166, 2V(Calc)=28, 2V(Meas)=28.3. Dispersion relatively strong. | ||
Calculated Properties of Syngenite |
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Bulk Density (Electron Density)=2.58 gm/cc note: Specific Gravity of Syngenite =2.58 gm/cc. |
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Fermion Index = 0.0018692654 Boson Index = 0.9981307346 |
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PESyngenite = 5.05 barns/electron U=PESyngenite x relectron= 13.00 barns/cc. |
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GRapi = 343.09 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Syngenite |
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Syngenite Classification |
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29.03.01.01 (29)Hydrated Acid and Sulfates | ||
(29.03)where (A+)2 B (XO4)2 � x(H2O) | |||
(29.03.01)Dana Group | |||
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07.CD.35 07 - SULFATES (SELENATES, TELLURATES) | ||
07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O | |||
07.CD -With only large cations | |||
Other Syngenite Information |
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NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Syngenite : 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 Syngenite using: Visit our Advertisers for Syngenite : Ask about Syngenite here : Print or Cut-and-Paste your Syngenite Specimen Label here :
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