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Fluor-liddicoatite [7] is a rare member of the tourmaline group of minerals, elbaite subgroup, and the theoretical calcium endmember of the elbaite-fluor-liddicoatite series; the pure end-member has not yet been found in nature. [3] Fluor-liddicoatite is indistinguishable from elbaite by X-ray diffraction techniques.
Elbaite forms three series, with dravite, with fluor-liddicoatite, and with schorl. Due to these series, specimens with the ideal endmember formula are not found occurring naturally. As a gemstone, elbaite is a desirable member of the tourmaline group because of the variety and depth of its colours and quality of the crystals.
The data was exported from mindat.org on 29 April 2005; updated up to 'IMA2021'. The minerals are sorted by name, followed by the structural group ( rruff.info/ima and ima-cnmnc by mineralienatlas.de, mainly ) or chemical class ( mindat.org and basics ), the year of publication (if it's before of an IMA approval procedure), the IMA approval and ...
The data was exported from mindat.org on 29 April 2005; updated up to 'IMA2021'. The minerals are sorted by name, followed by the structural group ( rruff.info/ima and ima-cnmnc by mineralienatlas.de, mainly ) or chemical class ( mindat.org and basics ), the year of publication (if it's before of an IMA approval procedure), the IMA approval and ...
Mindat.org is a non-commercial interactive online database covering minerals around the world. Originally created by Jolyon Ralph as a private project in 1993, it was launched as a community-editable website in October 2000.
Dispersion: 0.017 [1]: Ultraviolet fluorescence: Pink stones; inert to very weak red to violet in long and short wave [1]: Absorption spectra: Strong narrow band at 498 nm, and almost complete absorption of red down to 640 nm in blue and green stones; red and pink stones show lines at 458 and 451 nm, as well as a broad band in the green spectrum [1]
The grouping of the New Dana Classification and of the mindat.org is similar only, and so this classification is an overview only. Consistency is missing too on the group name endings (group, subgroup, series) between New Dana Classification and mindat.org. Category, class and supergroup name endings are used as layout tools in the list as well.
– questionable/ doubtful (IMA/CNMNC or Mindat.org status). N – published without approval of the IMA/CNMNC, or just not an IMA approved mineral but with some acceptance in the scientific community nowadays. G – a name used to designate a group of species, sometimes only a mineral group name. I – intermediate member of a solid-solution ...