Petalite : CSIRO Spectroscopy Database

Petalite [ LiAlSi₄O₁₀ ]

Image of Petalite

Petalite from Araçuaí, Jequitinhonha Valley, Minas Gerais, Brazil. Approximately 12 cm x 9 cm.

Photo by Stephen E. Fritz (via Wikimedia Commons), CC-BY 3.0

Material properties

Formula	LiAlSi₄O₁₀
Abbreviation	Ptl
Luminescence emitters	Al centres, Fe, Mn, O, Tl, Unspecified
Spectra	Reflectance (2)
IMA Status	Grandfathered (pre-IMA), 1800
Search other databases	webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags	Mineral, Aluminosilicate

Composition

Element	Atoms
Al	1
O	10
Si	4
Li	1
Total:	16

References for Petalite

Kuznetsov and Tarashchan 1988

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Prokofiev et al. 1979

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CSIRO Reflectance 2025b

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Specimens of Petalite

Name	Owner	Materials	Phase purity	Image	Spectra	Techniques
M2823 Petalite	CSIRO	Petalite (98.0%), Quartz	98.0	M2823 Petalite Image of Petalite and Quartz in specimen 'M2823 Petalite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	1	Reflectance
M1296 Petalite / Microcline	CSIRO	Albite, Ca, Microcline, Muscovite-2M1, Orthoclase, Petalite (76.6%), Quartz	76.6	M1296 Petalite / Microcline Image of Petalite, Albite (var. Ca), Microcline, Muscovite-2M1, Orthoclase and Quartz in specimen 'M1296 Petalite / Microcline' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	1	Reflectance