Larnite R070530
Name: Larnite
RRUFF ID: R070530
Ideal Chemistry: Ca2(SiO4)
Locality: Larne, County Antrim, Northern Ireland, UK
Source: Michael Scott S100407
Owner: RRUFF
Description: Light gray massive
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Not in a structural group (133) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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RRUFF ID: R070530
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Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R070530.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.515(2)Å    b: 6.764(2)Å    c: 9.323(3)Å
alpha: 90°    beta: 94.48(1)°    gamma: 90°   Volume: 346.6(1)Å3    Crystal System: monoclinic
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Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Larnite

American Mineralogist Crystal Structure Database Record: [view record]

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]

Schairer J F (1929) New mineral names, American Mineralogist, 14, 338-340   [view file]

Tilley C E (1929) On larnite (calcium orthosilicate, a new mineral) and its associated minerals from the limestone-contact zone of Scawt Hill, Co. Antrim, Mineralogical Magazine, 22, 77-86   [view file]

Bowen N L, Schairer J F, Posnjak E (1933) The system, Ca2SiO4-Fe2SiO4, American Journal of Science, 25, 273-297   [view file]

Bridge T E (1966) Bredigite, larnite and γ dicalcium silicates from Marble Canyon, American Mineralogist, 51, 1766-1774   [view file]

Moore P B (1973) Bracelets and pinwheels: A topological-geometrical approach to the calcium orthosilicate and alkali sulfate structures, American Mineralogist, 58, 32-42   [view file]

Jost K H, Ziemer B, Seydel R (1977) Redetermination of the structure of β-dicalcium silicate, Acta Crystallographica, B33, 1696-1700

Tsurumi T, Hirano Y, Kato H, Kamiya T, Daimon M (1994) Crystal structure and hydration of belite, Ceramic Transactions, 40, 19-25

Swamy V, Dubrovinsky L S (1997) Thermodynamic data for the phases in the CaSiO3 system, Geochimica et Cosmochimica Acta, 61, 1181-1191

Nasdala L, Brenker F E, Glinnemann J, Hofmeister W, Gasparik T, Harris J W, Stachel T, Reese I (2003) Spectroscopic 2D-tomography: Residual pressure and strain around mineral inclusions in diamonds, European Journal of Mineralogy, 15, issue 6 931-935

Brenker F E, Vincze L, Vekemans B, Nasdala L, Stachel T, Vollmer C, Kersten M, Somogyi A, Adams F, Joswig W, Harris J W (2005) Detection of a Ca-rich lithology in the Earth's deep (>300 km) convecting mantle, Earth and Planetary Science Letters, 236, issue 3-4 579-587

Yamnova N A, Zubkova N V, Eremin N N, Zadov A E, Gazeev V M (2011) Crystal structure of larnite β-Ca2SiO4 and specific features of polymorphic transitions in dicalcium orthosilicate, Crystallography Reports, 56, issue 2 210-220

Xiong Z, Liu X, Shieh S R, Wang S, Chang L, Tang J, Hong X, Zhang Z, Wang H (2016) Some thermodynamic properties of larnite (β-Ca2SiO4) constrained by high T/P experiment and/or theoretical simulation, American Mineralogist, 101, 277-288

Novembre D, Pace C, Gimeno D (2018) Synthesis and characterization of wollastonite-2M by using a diatomite precursor, Mineralogical Magazine, 82, 95-110