|
Anthophyllite Mineral Data + |
General Anthophyllite Information |
|||
| [ ]Mg7Si8O22(OH)2 | |||
| Molecular Weight = 780.82 gm | |||
| Magnesium 21.79 % Mg 36.13 % MgO | |||
| Silicon 28.78 % Si 61.56 % SiO2 | |||
| Hydrogen 0.26 % H 2.31 % H2O | |||
| Oxygen 49.18 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mg7(Si8O22)(OH)2 | |||
| Metamorphic rocks. | |||
| Valid Species (Pre-IMA) 1861 | |||
| Bodenmais, Germany. Montana, USA. Link to MinDat.org Location Data. | |||
| From the Latin anthophyllum - "clove" in allusion to the color. | |||
| ICSD 40294 | |||
| PDF 42-544 | |||
Anthophyllite Image | |||
|
|
|
||
Anthophyllite Crystallography |
|||
| a:b:c =1.0292:1:0.2929 | |||
| a = 18.554, b = 18.026, c = 5.28, Z = 5; V = 1,765.92 Den(Calc)= 3.67 | |||
| Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P nma | |||
| By Intensity(I/Io): 3.05(1), 3.24(0.6), 8.26(0.55), | |||
|
Mouse |
| ||
Physical Properties of Anthophyllite |
|||
| [110] Perfect, [???] Distinct, [???] Distinct | |||
| White, Greenish gray, Green, Clove brown, Brownish green. | |||
| 2.85 - 3.57, Average = 3.21 | |||
| Transparent to translucent | |||
| Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | |||
| Fibrous - Crystals made up of fibers. | |||
| Lamellar - Thin laminae producing a lamellar structure. | |||
| Massive - Uniformly indistinguishable crystals forming large masses. | |||
| 5-6 - Between Apatite and Orthoclase | |||
| Non-fluorescent. | |||
| Vitreous - Pearly | |||
| gray | |||
Optical Properties of Anthophyllite |
|||
| CI meas= 0.034 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.155 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1759,KPDmeas= 0.2011,KC= 0.2082 |
|||
| Biaxial (+), a=1.598-1.674, b=1.605-1.685, g=1.615-1.697, bire=0.0170-0.0230, 2V(Calc)=82-90, 2V(Meas)=57-90. Dispersion r > v or r < v. | |||
| pale green, pale tan brown, clove brown, or greenish yellow. | |||
| brownish green, pale tan brown, clove brown, or greenish yellow. | |||
| greenish blue, tan brown, smoky gray, dark brown, or grayish green. | |||
Calculated Properties of Anthophyllite |
|||
relectron=3.21 gm/cc |
|||
| Fermion Index = 0.03546 Boson Index = 0.96454 |
|||
PEAnthophyllite = 1.59 barns/electron |
|||
| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Anthophyllite is Not Radioactive |
|||
Anthophyllite Classification |
|||
| 66.1.2.2 (66)Inosilicate Double-Width Unbranched Chains, W=2 | |||
| (66.1)Dana Type | |||
| (66.1.2)Group 1, the Mg-Fe-Mn-Li amphiboles (Orthorhombic) | |||
| VIII/F.12-60 VIII - Silicates | |||
| VIII/F - Inosilicates (chain and band) double chains [Si4O11]6-, Orthorhombic Amphiboles | |||
| VIII/F.12 - Amphibole group, Magnesioholmquistite - Ferrogedrite series | |||
Other Anthophyllite Information |
|||
| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65) | |||
| Links to other databases for Anthophyllite : 1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - MinMax(Deutsch) 12 - MinMax(English) 13 - Mineralienatlas (Deutsch) 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - Scandinavian mineral gallery 17 - University of Colorado - Mineral Structure Data 18 - WWW-MINCRYST Search for Anthophyllite using: Visit our Advertisers for Anthophyllite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals The GeoZone Wrights Rock Shop Translate Anthophyllite Mineral Data : Ask about Anthophyllite here : Print or Cut-and-Paste your Anthophyllite Specimen Label here :
|
|||