Mineralienatlas - Fossilienatlas
Tissintite |
Collectors Summary
Crystal System | monoklin, C2/c |
Additional information / Summary
Tissintit ist ein Vakanz-reicher, Hochdruck-Klinopyroxen, mit einer Zusammensetzung im wesentlichen äquivalent zu Plagioklas. Tissinit wurde in Maskelynit (geschocktem Plagioklas) entdeckt und wird häufig beobachtet, innerhalb oder in Kontakt mit Schock geschmozenen Einschlüsse im Tissint Meteorit, einem Shergottit Sturz vom Mars. |
Chemism
Chemical formula |
(Ca,Na,☐)AlSi2O6 |
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Empirical formula (analysis) |
Ca0.45Na0.31☐0.24)(Al0.97Fe0.03Mg0.01)(Si1.80Al0.20)O6 |
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Chemical composition |
Aluminium, Calcium, Natrium, Silicium, Sauerstoff, Vakanz |
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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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IMA status |
anerkannt - CNMNC Newsletter No. 16, August 2013 |
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Mineral status |
anerkanntes Mineral |
IMA Classification
IMA Classification |
Pyroxene group ⇒ Clinopyroxene group |
Crystallography
2/m |
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Space Group number |
15 |
C2/c |
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Cell parameters a (Å) |
9.21(17) |
Cell parameters b (Å) |
9.09(4) |
Cell parameters c (Å) |
5.20(2) |
Cell parameters a/b or c/a |
1.013 |
Cell parameters c/b |
0.572 |
Cell parameters α |
90° |
Cell parameters β |
109.6(9)°º |
Cell parameters γ |
90° |
Z |
4 |
Volume (ų) |
410.114 |
Ca-Analog von Jadeit |
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4.281(18), 2.917(100), 2.827(28), 2.825(41), 2.488(40), 2.482(18), 2.414(33), 1.966(19) |
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Calculated from d-spacing and intensity at 0.1541838 nm (Cu) |
Physical Properties
3.32 |
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3.323 ( ρ calc. Mineralienatlas ) |
(Co-)Type locality
(Co-)Type locality |
Marokko/Souss-Massa, Region/Tata, Provinz/Tissint/Tissint Meteorit |
Type material |
Tissint Sektion UT1 und UT2 in der Meteorit Sammlung des the Frank H. McClung Museum der the Universität von Tennessee, Knoxville, Tennessee, USA |
Preface
Author (Name, Year) |
Chi Ma, Yang Liu und Oliver Tschauner (2013) |
References
Ma, C., Liu, Y. and Tschauner, O. (2013) Tissintite, IMA 2013-027. CNMNC Newsletter No. 16, August 2013, page 2707; Mineralogical Magazine, 77, 2695-2709. http://www.hou.usra.edu/meetings/lpsc2014/pdf/1222.pdf http://www.hou.usra.edu/meetings/8thmars2014/pdf/1317.pdf Ma, C., Tschauner, O., Beckett, J.R., Liu, Y., Rossman, G.R., Zhuravlev, K., Prakapenka, V., Dera, P., Taylor, L.A. - Tissintite, (Ca, Na, □)AlSi2O6, a highly-defective, shock-induced, high-pressure clinopyroxene in the Tissint martian meteorite. Earth and Planetary Science Letters, 422 (2015), 194-205. |
IMA group assignments
Other languages
German |
Tissintit |
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English |
Tissintite |
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Simplified Chinese |
钙硬玉 |
CNMNC (IMA)-Number
IMA 2013-027 |
CNMNC symbol
Symbol |
Tss |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
IDs
GUSID (Global unique identifier short form) | QIQifuEv20y-17kpxXRPUQ |
GUID (Global unique identifier) | 7E228440-2FE1-4CDB-BED7-B929C5744F51 |
Database ID | 7634 |