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Important Update News
The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
We are grateful to NASA for the funding of this effort.
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Name: Petalite RRUFF ID: R040100 Ideal Chemistry: LiAlSi4O10 Locality: Brazil Source: Bob Downs Owner: RRUFF Description: Pale purple cut gemstone Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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| Mineral Group: [ Not in a structural group (133) ] | ||
| Quick search: [ All Petalite samples (2) ] | ||
| CHEMISTRY | ||||||||
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| RAMAN SPECTRUM | ||||||||||||
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| BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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| INFRARED SPECTRUM (Attenuated Total Reflectance) | |||||||||||||||
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| POWDER DIFFRACTION | ||||||||
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| RRUFF ID: | R040100.1 | |||||||
| Sample Description: | Powder | |||||||
| Cell Refinement Output: |
a: 11.750(2)Å b: 5.1395(5)Å c: 7.625(1)Å alpha: 90.° beta: 113.00(1)° gamma: 90.° Volume: 423.90(7)Å3 Crystal System: monoclinic |
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| REFERENCES for Petalite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
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d’Andrada J B (1800) Der Eigenschaften und Kennzeichen einiger neuen Fossilien aus Schweden und Norwegen nebst einigen chemischen Bemerkungen über dieselben, Allgemeines Journal der Chemie, 4, 28-39 [view file] |
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d’Andrada J B (1801) Description of some new fossils (Old English translation), A Journal of Natural Philosophy, Chemistry, and the Arts, 5, 193-196; 211-213 [view file] |
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Clarke E D (1818) Description and analysis of a substance called petalite, from Sweden, Annals of Philosophy, 11, 194-198 [view file] |
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Nel H J (1946) Petalite and amblygonite from Karibib, South West Africa, American Mineralogist, 31, 51-57 [view file] |
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Tagai T, Ried H, Joswig W, Korekawa M (1982) Kristallographische untersuchungen eines petalits mittels neutronenbeugung und transmissionselektronenmikroskopie, Zeitschrift für Kristallographie, 160, 159-170 [view file] |
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Černý P, London D (1983) Crystal chemistry and stability of petalite, Tschermaks Mineralogische und Petrographische Mitteilungen, 31, 81-96 |
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Charoy B, Noronha F, Lima A (2001) Spodumene – petalite – eucryptite: mutual relationships and pattern of alteration in Li-rich aplite-pegmatite dykes from northern Portugal, The Canadian Mineralogist, 39, 729-746 [view file] |
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Shannon R D, Shannon R C, Medenbach O, Fischer R X (2002) Refractive index and dispersion of fluorides and oxides, Journal of Physical and Chemical Reference Data, 31, 931-970 [view file] |
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Knight K S (2014) The temperature-dependance of the volume expansivity and the thermal expansion tensor of petalite between 4.2 K and 600 K, Journal of Mineralogical and Petrological Sciences, 109, 118-124 |
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Ross N L, Zhao J, Slebodnick C, Spencer E C, Chakoumakos B C (2015) Petalite under pressure: elastic behavior and phase stability, American Mineralogist, 100, 714-721 |
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Dias F, Lima A, Roda-Robles E (2019) Mutual relationships between spodumene and petalite from the Iberian massif pegmatites: More than PT changes?, The Canadian Mineralogist, 57, 731-732 |
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