Mineralienatlas - Fossilienatlas
Proto-anthophyllite (Protoanthophyllit) |
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Proto-Anthophyllit Proto-Anthophyllit von der Takase Mine in Japan. Stufe von Alfredo Petrov. Copyright: Stefan; Contribution: Stefan Location: Japan/Honshu/Chugoku, Region/Okayama, Präfektur/Niimi/Shingo-takase/Takase Mine Mineral: Proto-anthophyllite Image: 1477521061 License: Usage for Mineralienatlas project only |
Proto-Anthophyllit |
Proto-Anthophyllit von der Takase Mine in Japan. Stufe von Alfredo Petrov. |
Copyright: | Stefan |
Contribution: Stefan 2016-10-27 |
Locality: Takase Mine / Shingo-takase / Niimi / Okayama, Präfektur / Chugoku, Region / Honshu / Japan |
Collectors Summary
Color | farblos bis weiß |
Lustre | Glasglanz |
Hardness (Mohs) | 6 |
Cleavages | vollkommen {110} |
Fracture | uneben |
Crystal System | orthorhombisch, |
Morphology | nach [001] gestreckte Prismen, die feinste Anthophyllit-Lamellen einschließen können und Längen von 2-10 mm erreichen |
Chemism
Chemical formula |
(Mg,Fe2+)2Mg5[OH|Si4O11]2·H2O |
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Chemical composition |
Eisen, Magnesium, Silicium, Sauerstoff, Wasserstoff |
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Analysis wt% |
SiO2 : 58.53, Al2O3 : 0.87, MgO : 31.33, FeO : 5.43, H2O : 2.22 (Ref: American Mineralogist 2003) |
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Strunz 9th edition incl. updates |
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9: Silikate (Germanate) |
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Lapis Classification |
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VIII: SILIKATE |
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Classification by Hölzel |
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9: SILICATES |
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Dana 8th edition |
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66: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2 |
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Mineral status |
anerkanntes Mineral |
IMA Classification
IMA Classification |
Amphibole supergroup ⇒ (OH,F,Cl)-dominant amphiboles ⇒ Magnesium-iron-manganese amphiboles ⇒ Anthophyllite (Ath) amphiboles |
Optical Properties
Optical Data Luminescence
keine Fluoreszenz bekannt |
Crystallography
mmm |
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Cell parameters a (Å) |
9.355 |
Cell parameters b (Å) |
17.931 |
Cell parameters c (Å) |
5.312 |
Cell parameters a/b or c/a |
0.522 |
Cell parameters c/b |
0.296 |
Cell parameters α |
90° |
Cell parameters β |
90° |
Cell parameters γ |
90° |
Z |
2 |
Volumne (ų) |
891.059 |
nach [001] gestreckte Prismen, die feinste Anthophyllit-Lamellen einschließen können und Längen von 2-10 mm erreichen |
Crystals 3D
Open larger view |
Crystal Structure 3D
Open larger view |
Physical Properties
6 |
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730 (ungefähre Angabe abgeleitet aus der Mohshärte) |
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2.98 |
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3.036 ( ρ calc. Mineralienatlas ) |
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vollkommen {110} |
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uneben |
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spröde |
(Co-)Type locality
(Co-)Type locality |
Japan/Honshu/Chugoku, Region/Okayama, Präfektur/Niimi/Shingo-takase/Takase Mine |
Preface
IMA group assignments
Other languages
German |
Proto-Anthophyllit |
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English |
Proto-anthophyllite |
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Russian |
Протоантофиллит |
Alternative Name
English |
Proto-Antophyllite |
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German |
Protoanthophyllit |
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Spanish |
Protoanthophyllita |
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English |
Protoanthophyllite |
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Japanese |
プロト直閃石 |
CNMNC (IMA)-Number
IMA 2001-065 |
CNMNC symbol
Symbol |
Path |
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