| Chlorapatite Mineral Data |
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- 41.8.1.0 Apatite* Ca5(PO4)3(OH,F,Cl) P 63/m 6/m
- 41.8.1.1 Fluorapatite Ca5(PO4)3F P 63/m 6/m
- 41.8.1.2 Chlorapatite Ca5(PO4)3Cl P 63/m 6/m
- 41.8.1.3 Hydroxylapatite Ca5(PO4)3(OH) P 63/m 6/m
- 41.8.1.4 Carbonate-fluorapatite Ca5(PO4,CO3)3F P 63/m 6/m
- 41.8.1.5 Carbonate-hydroxylapatite Ca5(PO4,CO3)3(OH) P 63/m 6/m
- 41.8.1.6 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3
- 41.8.1.6a Belovite-(La)! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3
- 41.8.1.6b Kuannersuite-(Ce)! Ba6Na2REE2(PO4)6FCl P 3 3
- 41.8.1.7 Strontium-apatite (Sr,Ca)5(PO4)3(F,OH) P 63/m 6/m
- 41.8.1.8 Fluorcaphite! (Ca,Sr,Ce,Na)5(PO4)3F P 63 6
- 41.8.1.9 Deloneite-(Ce)! NaCa2SrCe(PO4)3F P 3 3
- VII/B.39-10 Fluorapatite Ca5(PO4)3F P 63/m 6/m
- VII/B.39-20 Chlorapatite Ca5(PO4)3Cl P 63/m 6/m
- VII/B.39-30 Hydroxylapatite Ca5(PO4)3(OH) P 63/m 6/m
- VII/B.39-40 Carbonate-hydroxylapatite Ca5(PO4,CO3)3(OH) P 63/m 6/m
- VII/B.39-50 Carbonate-fluorapatite Ca5(PO4,CO3)3F P 63/m 6/m
- VII/B.39-60 Svabite Ca5(AsO4)3F P 63/m 6/m
- VII/B.39-70 Turneaureite Ca5[(As,P)O4]3Cl P 63/m 6/m
- VII/B.39-80 Johnbaumite Ca5(AsO4)3(OH) P 63/m,P 63 Hex
- VII/B.39-90 Fermorite (Ca,Sr)5(AsO4,PO4)3(OH) P 63/m 6/m
- VII/B.39-95 Fluorcaphite! (Ca,Sr,Ce,Na)5(PO4)3F P 63 6
- VII/B.39-100 Strontium-apatite (Sr,Ca)5(PO4)3(F,OH) P 63/m 6/m
- VII/B.39-110 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3
- VII/B.39-115 Belovite-(La)! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3
- VII/B.39-117 Kuannersuite-(Ce)! Ba6Na2REE2(PO4)6FCl P 3 3
- VII/B.39-120 Alforsite Ba5(PO4)3Cl P 63/m 6/m
- VII/B.39-130 Morelandite (Ba,Ca,Pb)5(AsO4,PO4)3Cl P 63/m,P 63 Hex
- VII/B.39-140 Hedyphane Ca2Pb3(AsO4)3Cl P 63/m 6/m
- VII/B.39-150 Pyromorphite Pb5(PO4)3Cl P 63/m 6/m
- VII/B.39-160 Mimetite Pb5(AsO4)3Cl P 63/m 6/m
- VII/B.39-165 Clinomimetite Pb5(AsO4)3Cl P 21/b 2/m
- VII/B.39-170 Vanadinite Pb5(VO4)3Cl P 63/m 6/m
General Chlorapatite Information |
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 Chemical Formula: |
Ca5(PO4)3Cl | ||
| Composition: |
Molecular Weight = 520.76 gm | ||
| Calcium 38.48 % Ca 53.84 % CaO | |||
| Phosphorus 17.84 % P 40.89 % P2O5 | |||
| Chlorine 6.81 % Cl 6.81 % Cl | |||
| - % Cl -1.54 % -O=Cl2 | |||
| Oxygen 36.87 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ca5(PO4)3Cl | ||
| Environment: |
Calc-silicate rocks. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1860 | ||
| Locality: |
Bob's Lake, Oso Twp., Frontenac County, Canada. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named as the chlorine end-member and from the Greek apatao - "I am misleading." | ||
| Synonym: |
Apatite | ||
| ICSD 1706 | |||
| PDF 33-271 | |||
Chlorapatite Image | |||
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Images:
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Chlorapatite Crystallography |
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| Axial Ratios: |
a:c = 1:0.70598 | ||
| Cell Dimensions: |
a = 9.598, c = 6.776, Z = 2; V = 540.59 Den(Calc)= 3.20 | ||
| Crystal System: |
Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.779(1), 2.861(0.6), 1.836(0.2), | ||
| Forms:
Mouse |
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Crystal Structure:
Mouse |
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Physical Properties of Chlorapatite |
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| Cleavage: |
[0001] Indistinct | ||
| Color: |
White, Light yellow, Pink white. | ||
| Density: |
3.1 - 3.2, Average = 3.15 | ||
| Diaphaniety: |
Transparent to Translucent | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. | ||
| Hardness: |
5 - Apatite | ||
| Luminescence: |
Fluorescent. | ||
| Luster: |
Vitreous - Dull | ||
| Streak: |
white | ||
Optical Properties of Chlorapatite |
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| Dichroism (e): |
colorless. | ||
| Dichroism (w): |
colorless. | ||
| Gladstone-Dale: |
CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.002 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2098,KPDmeas= 0.2131,KC= 0.2094 |
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| Optical Data: |
Uniaxial (-), e=1.6675, w=1.675, bire=0.0075. | ||
Calculated Properties of Chlorapatite |
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| Electron Density: |
relectron=3.17 gm/cc |
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| Fermion Index |
Fermion Index = 0.00069 Boson Index = 0.99931 |
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| Photoelectric: |
PEChlorapatite = 6.03 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Chlorapatite is Not Radioactive |
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Chlorapatite Classification |
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| Dana Class: |
41.8.1.2 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
| (41.8)where (A)5 (XO4)3 Zq | |||
| (41.8.1)Dana Group | |||
| Strunz Class: |
VII/B.39-20 VII - Phosphates, Arsenates and Vanadates | ||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb | |||
| VII/B.39 - Apatite - Pyromorphite group | |||
Other Chlorapatite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | ||
| See Also: |
Links to other databases for Chlorapatite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 - Mineral and Gemstone Kingdom 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - Scandinavian mineral gallery 15 -University of Colorado - Mineral Structure Data 16 - WWW-MINCRYST 17 -École des Mines de Paris Search for Chlorapatite using: Visit our Advertisers for Chlorapatite : Translate Chlorapatite Mineral Data : Ask about Chlorapatite here : Print or Cut-and-Paste your Chlorapatite Specimen Label here :
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