[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts] See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM] Mineral News was founded some twenty years ago and has developed a following of avid mineral collectors seeking timely information about new finds and other items of interest to the collector community. Articles are solicited from collector and scientific authors. General Apatite-(SrOH) Information(Sr,Ca)5(PO4)3(F,OH) |
Molecular Weight = 634.05 gm |
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Strontium 38.00 % Sr 44.94 % SrO |
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Calcium 14.22 % Ca 19.90 % CaO |
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Phosphorus 14.66 % P 33.58 % P2O5 |
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Hydrogen 0.08 % H 0.71 % H2O |
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Oxygen 31.54 % O |
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Fluorine 1.50 % F 1.50 % F |
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- %
F -0.63 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
5(Sr0.55)5(Ca0.45)(PO4)3F0.5(OH)0.5 |
Alkali pegmatites. |
Approved IMA 1962 |
Inaglinsky massif, southern Yakutia, Russia. Link to MinDat.org Location Data. |
Named for the composition and resemblance to the apatites. |
Apatite-(SrOH) |
Apatite |
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Strontium-apatite - Renamed to Apatite-(SrOH) by Mineralogical Record, v39 (2008), p 131 |
| | Search for Apatite-(SrOH) Images
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| | Apatite-(SrOH) Crystallographya:c = 1:0.74385 |
a = 9.565, c = 7.115, Z = 2; V = 563.74 Den(Calc)= 3.74 |
Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m |
By Intensity(I/Io): 2.89(1), 2.78(0.7), 3.167(0.7), |
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| Physical Properties of Apatite-(SrOH){1011} Imperfect |
Green, Yellowish green, Colorless. |
3.84 |
Transparent to Translucent |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Skeletal - Crystals form crude outlines with missing faces. |
Sugary - Granular texture formed from small, anhedral to subhedral grains forming massive rock. (Aplitic texture). |
5 - Apatite |
Vitreous - Greasy |
| Optical Properties of Apatite-(SrOH)CI meas= 0.022 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1722,KPDmeas= 0.1677,KC= 0.1715 Ncalc = 1.64 - 1.66 Uniaxial (-), e=1.637, w=1.651, bire=0.0140. |
| Calculated Properties of Apatite-(SrOH)Bulk Density (Electron Density)=3.53 gm/cc |
note: Specific Gravity of Apatite-(SrOH) =3.74 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEApatite-(SrOH) = 45.07 barns/electron |
U=PEApatite-(SrOH) x rElectron Density= 159.23 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Apatite-(SrOH) is Not Radioactive | Apatite-(SrOH) Classification41.08.01.07 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen |
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(41.08)where (A)5 (XO4)3 Zq |
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(41.08.01)Apatite Group |
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08.BN.05 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BN -With only large cations, (OH, etc.):RO4 = 0.33:1 |
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| Other Apatite-(SrOH) InformationNAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Apatite-(SrOH) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - MinDAT 6 - MinMax(Deutsch) 7 - MinMax(English) 8 - Mineralienatlas (Deutsch) 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Apatite-(SrOH) using: Visit our Advertisers for Apatite-(SrOH) : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Apatite-(SrOH) Mineral Data : Ask about Apatite-(SrOH) here : Print or Cut-and-Paste your Apatite-(SrOH) Specimen Label here :
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