LIVE REPORT! The 49th Treasures of the Earth Show - Albuquerque, New Mexico - last updated 2 hours ago. Click here to watch.
Donate now to keep alive!Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
What is a mineral?The most common minerals on earthMineral PhotographyThe Elements and their MineralsGeological TimeMineral Evolution
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
Frank Dawson Adams
NaY[CO3]2 · 6H2O
Colourless, white, pale pink, pale purple.
Crystal System:
Named in honor of Professor Frank Dawson Adams (1859–1942), McGill University, Montreal, Canada, geologist and petrologist, who studied the Monteregian Hills, one of which is Mont Saint-Hilaire.
Chemically similar to shomiokite-(Y), lecoqite-(Y), and horváthite-(Y); also to thomasclarkite-(Y) (bicarbonate).

The structure is layered; one carbonate group is perpendicular, and the other parallel to the layering. In the crystal structure there are NaYCO3 groups separated by layers of H2O. The neighbouring water layers have only H-bond linkage, which results in perfect cleavage (Grice et al., 2000).

Hide all sections | Show all sections

Classification of Adamsite-(Y)Hide

Approval Year:
First Published:

C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)

Pronounciation of Adamsite-(Y)Hide

PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of Adamsite-(Y)Hide

Transparent, Translucent
Colourless, white, pale pink, pale purple.
Perfect on {001}; good on {100}, {010}.

Optical Data of Adamsite-(Y)Hide

Biaxial (+)
RI values:
nα = 1.480 nβ = 1.498 nγ = 1.571
Max Birefringence:
δ = 0.091
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Adamsite-(Y)Hide

NaY[CO3]2 · 6H2O
IMA Formula:
NaY(CO3)2 · 6H2O
Common Impurities:

Crystallography of Adamsite-(Y)Hide

Crystal System:
Class (H-M):
1 - Pedial
Space Group:
Cell Parameters:
a = 6.2592 Å, b = 13.0838 Å, c = 13.227 Å
α = 91.130°, β = 103.554°, γ = 90.188°
a:b:c = 0.478 : 1 : 1.011
Unit Cell V:
1049.1 ų
Flat, acicular to fibrous crystals, up to 2.5 cm in length. Forming spherical groups of radiating crystals, more rarely reticulated groups. Elongated on [100] and flat on [001]. Forms observed are the pedions {010}, {010}, {001}, {001}, {100} and {100}.

Type Occurrence of Adamsite-(Y)Hide

General Appearance of Type Material:
Crystals are acicular to fibrous, to 2.5 cm, elongated along [100], flattened on [001], showing {010} and {001}; in spherical radiating groups, which rarely are reticulated.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Canada, numbers 82939 and 82940.
Geological Setting of Type Material:
A rare late-stage, low-temperature hydrothermal mineral in an alkalic pegmatite dike associated with an intrusive alkalic gabbro-syenite complex.
Associated Minerals at Type Locality:

Synonyms of Adamsite-(Y)Hide

Other Language Names for Adamsite-(Y)Hide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Thomasclarkite-(Y)8 photos of Adamsite-(Y) associated with Thomasclarkite-(Y) on
Shomiokite-(Y)8 photos of Adamsite-(Y) associated with Shomiokite-(Y) on
Aegirine5 photos of Adamsite-(Y) associated with Aegirine on
Quartz5 photos of Adamsite-(Y) associated with Quartz on
Rhodochrosite4 photos of Adamsite-(Y) associated with Rhodochrosite on
Microcline3 photos of Adamsite-(Y) associated with Microcline on
Gaidonnayite3 photos of Adamsite-(Y) associated with Gaidonnayite on
Rémondite-(Ce)2 photos of Adamsite-(Y) associated with Rémondite-(Ce) on
Niveolanite2 photos of Adamsite-(Y) associated with Niveolanite on
Franconite2 photos of Adamsite-(Y) associated with Franconite on

Related Minerals - Nickel-Strunz GroupingHide

5.CC.05Donnayite-(Y)NaCaSr3Y(CO3)6 · 3H2OTric. 1 : P1
5.CC.05EwalditeBa(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2OHex. 6mm
5.CC.05Mckelveyite-(Nd)(Ba,Sr)(Nd,Ce,La)(CO3)2 · 4-10H2OTric.
5.CC.05Mckelveyite-(Y)NaCaBa3Y(CO3)6 · 3H2OTric. 1 : P1
5.CC.05WeloganiteNa2Sr3Zr(CO3)6 · 3H2OTric. 1 : P1
5.CC.10Tengerite-(Y)Y2(CO3)3 · 2-3H2OOrth. mmm (2/m 2/m 2/m) : Pnnm
5.CC.15Kimuraite-(Y)Ca(Y,Nd)2(CO3)4 · 6H2OOrth.
5.CC.15Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2OOrth.
5.CC.20Shomiokite-(Y)Na3Y[CO3]3 · 3H2OOrth.
5.CC.25Calkinsite-(Ce)(Ce,La)2(CO3)3 · 4H2OOrth.
5.CC.25Lanthanite-(Ce)(Ce,La,Nd)2(CO3)3 · 8H2OOrth. mmm (2/m 2/m 2/m)
5.CC.25Lanthanite-(La)(La,Ce)2(CO3)3 · 8H2OOrth.
5.CC.25Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2OOrth.
5.CC.35Decrespignyite-(Y)Cu(Y,REE)4(CO3)4(OH)5Cl · 2H2OMon.
5.CC.40Galgenbergite-(Ce)Ca(Ce,La,Nd)2(CO3)4 · H2OTric.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Adamsite-(Y)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Grice, J. D., Gault, R. A., Roberts, A. C., Cooper, M. A. (2000) Adamsite-(Y), a new sodium-yttrium carbonate mineral species from Mont Saint-Hilaire, Quebec. Canadian Mineralogist 38, 1457-1466.

Internet Links for Adamsite-(Y)Hide

Localities for Adamsite-(Y)Hide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada (TL)
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Grice, J. D., Gault, R. A., Roberts, A. C., Cooper, M. A. (2000) Adamsite-(Y), a new sodium-yttrium carbonate mineral species from Mont Saint-Hilaire, Quebec. Canadian Mineralogist, 38, 1457-1466.
  • Nordland
    • Tysfjord
Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
  • Northern Region
    • Murmanskaya Oblast'
      • Lovozero Massif
        • Alluaiv Mt
          • Umbozero mine (Umbozerskii mine; Umba Mine)
P.M. Kartashov data
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2018, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: March 19, 2018 01:26:06 Page generated: March 16, 2018 01:45:49
Go to top of page