Eudialyte is a somewhat rare red silicate mineral, which forms in alkaline igneous rocks, such as nepheline syenites. The name eudialyte is derived from the Greek phrase Εὖ διάλυτος eu dialytos, meaning "well decomposable", Its name alludes to its ready solubility in acid. Eudialyte was first described in 1819 for an occurrence in nepheline syenite of the Ilimaussaq intrusive complex of southwest Greenland. The rarity of eudialyte makes locality useful in its identification. Prominent localities of eudialyte include Mont Saint-Hilaire in Canada and the Kola Peninsula in Russia, but it is also found in Greenland, Norway, and Arkansas.

Within the metaphysical realm of minerals, eudialyte helps to spark ideas within the believer. Eudialyte brings the believer's heart and base chakras into alignment and to assist in following the path of joyous co-creation with all of reality. It allows for the believer's heart’s deepest desires to manifest in the physical world. It allows the things that the believer loves the most to become part of their everyday life, thus allowing for a more fulfilling life. Eudialyte increases the believer's energy and boosts confidence, self-expression and creativity. It helps the believer to overcome doubt, self-criticism, confusion and fear. Its energies support for the believer as they move in the direction of their dreams.

Please note that MIROFOSS does not suggest in any way that minerals should be used in place of proper medical and psychological care. This information is provided here as a reference only.

Eudialyte is used as a minor ore of zirconium. Another use of eudialyte is as a minor gemstone, but this use is limited by its rarity, which is compounded by its poor crystal habit. These factors make eudialyte of primary interest as a collector's mineral.

Eudialyte can be found in nepheline syenites and alkalic granites.

Eudialyte is found associated with other alkalic igneous minerals, in addition to the some minerals common to most igneous material in general. Associate minerals include: microcline, nepheline, aegirine, lamprophyllite, lorenzenite, murmanite, arfvedsonite, sodalite, aenigmatite, rinkite, låvenite, titanite and titanian magnetite. The lack of crystal habit, and the mineral colour, are useful when identifying eudialyte as well as the associated minerals that can be found near eudailyte. A pink-red mineral with imperfect crystals associated with other alkaline igneous material, especially nepheline and aegirine, is a good indication a specimen is eudialyte.

Cleavage	Imperfect
Colour(s)	Pinkish red, Red, Yellow, Yellowish brown, Violet
Specific Gravity	2.9
Diaphaneity	Transparent to Translucent
Fracture	Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern
Mohs Hardness	5.0 to 5.5
Luminescence	Non-fluorescent
Luster	Vitreous
Streak	White
Habit(s)	Massive to Granular to Tabular
Radioactivity	Eudialyte per GRapi unit = 137.21 (PPM)
Magnetism	Non-magnetic

The following health hazards should be noted when handling eudialyte

RADIOACTIVE Eudialyte is radioactive as defined in section 49 CFR 173.403. Greater than 70 Bq / gram. Eudialyte is considered moderately radioactive.

The following image shows the Elemental breakdown of the mineral eudialyte along with the mineral crystal structure.

Crystal System	Trigonal
Class	Hexagonal
Axial Ratios	a : c = 1 : 2.10669
Morphology	short rhombohedral to long prismatic
Optical Data Type	Uniaxial (+/-)
Dichroism (e)	N/A
Dichroism (w)	N/A
Pleochroism (z)	None
RL Values	nω = 1.606 - 1.610 nε = 1.610 - 1.613
2V	N/A
Max Birefringence	δ = 0.004 (See colour chart at right)
Surface Relief	Moderate
Pleochroism	Weak

Eudialyte can be referenced in certain current and historical texts under the following five names:

Almandine Spar	Eudalite	Eudialite	Eudyalite
Saami Blood

The mineral eudialyte can be translated into the following select languages:

Arabic		Bulgarian		Chinese (Sim)
Croatian		Czech		Danish	eudialyt
Dutch	Eudialyt	Esperanto		Estonian	eudialiit
Finnish		French		German	Eudialyt
Greek		Hebrew		Hungarian
Italian		Japanese	ユージアライト	Korean	유마일라읻으
Latin		Lithuanian		Norwegian
Persian		Polish		Portuguese
Romanian		Russian	Эвдиалит	Slovak
Spanish	Eudalita	Swedish	eudialyt	Tagalog
Turkish		Ukrainian	Евдіалітia	Vietnamese

The MIROFOSS database offers free printable geological identification tags for personal and non-profit use. These tags can be used to properly identify mineral samples in your collection. -Click here- to download a full size jpeg image for a eudialyte identification tag; which can be printed on paper or used with a plastic laser printer.

What's this? This is a QR code (short for Quick Response) which gives fast-track access to MIROFOSS articles. QR Codes are barcodes that can be read by smart phone cameras. This QR Code is unique to this MIROFOSS article. What can I do with it? You can copy and print the QR code to a plant label, poster, book, web site, magazines, or newspaper so smart phone users can scan the QR Code which automatically takes them to this specific article.

Crystallography	Khomyakov, A.P., Nechelyustov, G.N., Rastsvetaeva, R.K. (2007): Aqualite, (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl, a new eudialyte-group mineral from Inagli alkaline massif (Sakha-Yakutia,Russia),and the problem of oxonium in hydrated eudialytes. Proceedings of the Russian Mineralogical Society (Zapiski RMO), 136(2), 39-55.
History	Canadian Mineralogist (1999): 37: 865-891.
Chemical Composition	Johnsen, O. and Galt, R.A. (1997) Chemical variation in eudialyte. Neues Jahrbuch für Mineralogie, Abhandlungen: 171: 215-237.
Geographical Data	Mindat.org. Retrieved on 2012-11-01
Physical Identification	Webmineral.com. Retrieved on 2012-11-01
November 01, 2012	The last time this page was updated
©2017 MIROFOSS™ Foundation