Thermessaite-(NH4), (NH4)2AlF3(SO4), a new fumarole mineral from La Fossa crater at Vulcano, Aeolian Islands, Italy

Garavelli, Anna; Pinto, Daniela; Mitolo, Donatella; Kolitsch, Uwe

doi:10.1180/mgm.2021.69

Cited by 2 publications

(1 citation statement)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Statistical analysis indicates that there are only four known examples of aluminum sulfate fluorides up until now, the isomorphic natural minerals A 2 AlSO 4 F 3 (A = K, NH 4 ) and the synthetic aluminum sulfate fluorides Li 4 MAl(SO 4 ) 2 F 4 (M = Rb, Cs) . Na 2 AlSO 4 F 3 crystallizes in the centrosymmetric space group P 2/ c , in which its smallest asymmetric unit contains nine crystallographically independent atoms (one Al, one S, two Na, two O, and two F atoms).…”

Section: Resultsmentioning

confidence: 99%

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO₂F₄] and [SO₄] Groups

Wu,

Li,

Zhang

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

Zero-order waveplates are widely used in the manufacture of laser polarizer waves, which are important in polarimetry and the laser industry. However, there are still challenges in designing deep-ultraviolet (DUV) waveplate materials that satisfy large band gaps and small optical anisotropy simultaneously. Herein, three cases of aluminum sulfate fluorides: Na 2 AlSO 4 F 3 , Li 4 NH 4 Al(SO 4 ) 2 F 4 , and Li 6 K 3 Al(SO 4 ) 4 F 4 , with novel [AlSO 4 F 3 ] layers or isolated [AlS 2 O 8 F 4 ] trimers were designed and synthesized by the rational assembly of [AlO 2 F 4 ] and [SO 4 ] groups through a hydrothermal method. Experiments and theoretical calculations imply that these three possess short cutoff edges (λ < 200 nm) and small birefringence (0.0014−0.0076 @ 1064 nm), which fulfils the prerequisite for potential DUV zero-order waveplate materials. This work extends the exploration of DUV zero-order waveplate materials to the aluminum sulfate fluoride systems.

show abstract

Section: Resultsmentioning

confidence: 99%

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO₂F₄] and [SO₄] Groups

Wu,

Li,

Zhang

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

Surface acid alteration of juvenile Andean pyroclastic rocks: effect of glass composition on the development of surface fluoride-bearing minerals

Vila,

Bia,

Bengió

et al. 2025

Chemical Geology

View full text Add to dashboard Cite

Thermessaite-(NH₄), (NH₄)₂AlF₃(SO₄), a new fumarole mineral from La Fossa crater at Vulcano, Aeolian Islands, Italy

Abstract: This is a 'preproof' accepted article for Mineralogical Magazine. This version may be subject to change during the production process.

Cited by 2 publications

References 38 publications

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO₂F₄] and [SO₄] Groups

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO₂F₄] and [SO₄] Groups

Surface acid alteration of juvenile Andean pyroclastic rocks: effect of glass composition on the development of surface fluoride-bearing minerals

Contact Info

Product

Resources

About

Thermessaite-(NH4), (NH4)2AlF3(SO4), a new fumarole mineral from La Fossa crater at Vulcano, Aeolian Islands, Italy

Abstract: This is a 'preproof' accepted article for Mineralogical Magazine. This version may be subject to change during the production process.

Cited by 2 publications

References 38 publications

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO2F4] and [SO4] Groups

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO2F4] and [SO4] Groups

Surface acid alteration of juvenile Andean pyroclastic rocks: effect of glass composition on the development of surface fluoride-bearing minerals

Contact Info

Product

Resources

About

Thermessaite-(NH₄), (NH₄)₂AlF₃(SO₄), a new fumarole mineral from La Fossa crater at Vulcano, Aeolian Islands, Italy

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO₂F₄] and [SO₄] Groups

Design of Deep-Ultraviolet Zero-Order Waveplate Materials by Rational Assembly of [AlO₂F₄] and [SO₄] Groups