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Moraesite

Big Photo

Linópolis, Divino das Laranjeiras, Doce valley, Minas Gerais, Southeast Region, Brazil
© O. Dziallas

Show Moraesite Photos (13)
Formula:
Be
 
2
[OH|PO
 
4
] · 4H
 
2
O
System:MonoclinicColour:White
This page provides mineralogical data about Moraesite.

Classification of Moraesite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/D.01-10
Nickel-Strunz 10th (pending) edition ID:8.DA.05

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
A : With small (and occasionally larger) cations
Dana 8th edition ID:42.6.1.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq·xH2O
Hey's CIM Ref.:19.3.1

19 : Phosphates
3 : Phosphates of Be and Mg
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Type Occurrence of Moraesite

Type Locality:Sapucaia Mine, Sapucaia do Norte, Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil
Year of Discovery:1953

Physical Properties of Moraesite

Colour:White

Crystallography of Moraesite

Crystal System:Monoclinic
Cell Parameters:a = 8.55Å, b = 36.9Å, c = 7.13Å
β = 97.68°
Ratio:a:b:c = 0.232 : 1 : 0.193
Unit Cell Volume:V 2,229.30 ų (Calculated from Unit Cell)

Optical Data of Moraesite

Type:Biaxial (-)
RI values: nα = 1.462 nβ = 1.482 nγ = 1.490
2V:Measured: 65° , Calculated: 62°
Maximum Birefringence:δ = 0.028

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v strong

Chemical Properties of Moraesite

Formula:
Be
 
2
[OH|PO
 
4
] · 4H
 
2
O
Essential elements:Be, H, O, P
All elements listed in formula:Be, H, O, P

Relationship of Moraesite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DA.05Bearsite
Be
 
2
[OH|AsO
 
4
] · 4H
 
2
O
8.DA.10Roscherite
Ca(Mn
2+
 
,Fe
2+
 
)
 
5
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
8.DA.10Zanazziite
Ca
 
2
(Mg,Fe)(Mg,Fe,Al)
 
4
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
8.DA.10Greifensteinite
Ca
 
2
(Fe
2+
 
, Mn)
 
5
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
8.DA.10Atencioite
Ca
 
2
Fe
2+
 
Mg
 
2
Fe
2+
2
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
8.DA.10Ruifrancoite
Ca
 
2
[ ]
 
2
(Fe
3+
 
,Mn
2+
 
,Mg)
 
4
Be
 
4
(PO
 
4
)
 
6
(OH)
 
4
(OH,H
 
2
O)
 
2
 · 4H
 
2
O
8.DA.10Guimarãesite
Ca
 
2
(Zn,Mg,Fe
2+
 
)
 
5
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
8.DA.10Footemineite
Ca
 
2
Mn
2+
 
Mn
2+
2
Mn
2+
2
Be
 
4
(PO
 
4
)
 
6
(OH)
 
4
 · 6H
 
2
O
8.DA.15Uralolite
Ca
 
2
Be
 
4
[OH|PO
 
4
]
 
3
 · 5H
 
2
O
8.DA.20Weinebeneite
CaBe
 
3
[OH|PO
 
4
]
 
2
 · 4H
 
2
O
8.DA.25Tiptopite
K
 
2
(Na,Ca)
 
2
Li
 
3
Be
 
6
[OH|(PO
 
4
)
 
3
]
 
2
 · H
 
2
O
8.DA.30Veszelyite
(Cu,Zn)
 
2
Zn(PO
 
4
)
 
2
·2H
 
2
O
8.DA.35Kipushite
(Cu,Zn)
 
5
Zn[(OH)
 
3
|PO
 
4
]
 
2
 · H
 
2
O
8.DA.35Philipsburgite
(Cu,Zn)
 
6
[(OH)
 
3
|(AsO
 
4
,PO
 
4
)]
 
2
 · H
 
2
O
8.DA.40Spencerite
Zn
 
4
[OH|PO
 
4
]
 
2
 · 3H
 
2
O
8.DA.45Glucine
CaBe
 
4
[(OH)
 
2
|PO
 
4
]
 
2
 · 0.5H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
19.3.2Beryllonite
NaBe[PO
 
4
]
19.3.3Hurlbutite
CaBe
 
2
[PO
 
4
]
 
2
19.3.4Hydroxylherderite
CaBe[(OH,F)|PO
 
4
]
19.3.5Glucine
CaBe
 
4
[(OH)
 
2
|PO
 
4
]
 
2
 · 0.5H
 
2
O
19.3.6Fransoletite
Ca
 
3
Be
 
2
[HPO
 
4
|PO
 
4
]
 
2
 · 4H
 
2
O
19.3.7Uralolite
Ca
 
2
Be
 
4
[OH|PO
 
4
]
 
3
 · 5H
 
2
O
19.3.9Pahasapaite
Li
 
8
(Ca,Li,K)
 
10.5
Be
 
24
(PO
 
4
)
 
24
·38H
 
2
O
19.3.10Tiptopite
K
 
2
(Na,Ca)
 
2
Li
 
3
Be
 
6
[OH|(PO
 
4
)
 
3
]
 
2
 · H
 
2
O
19.3.11Gainesite
Na(Na,K)(Be,Li)Zr
 
2
[PO
 
4
]
 
4
 · 1.5-2H
 
2
O
19.3.12Roscherite
Ca(Mn
2+
 
,Fe
2+
 
)
 
5
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
19.3.13Faheyite
(Mn,Mg,Na)Be
 
2
Fe
 
2
(PO
 
4
)
 
4
·6H
 
2
O
19.3.14Farringtonite
Mg
 
3
[PO
 
4
]
 
2
19.3.15Holtedahlite
Mg
 
2
[OH|PO
 
4
]
19.3.16Althausite
Mg
 
2
[(OH,F)|PO
 
4
]
19.3.17Newberyite
MgHPO
 
4
·3H
 
2
O
19.3.18Phosphorrösslerite
MgHPO
 
4
·7H
 
2
O
19.3.19Bobierrite
Mg
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.20Barićite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.21Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
[PO
 
4
]
 
2
19.3.22Dittmarite
NH
 
4
MgPO
 
4
·H
 
2
O
19.3.23Struvite
NH
 
4
MgPO
 
4
·6H
 
2
O
19.3.24Hannayite
(NH
 
4
)
 
2
Mg
 
3
H
 
4
(PO
 
4
)
 
4
·8H
 
2
O

Other Names for Moraesite

Other Languages:
German:Moraesit
Russian:Мораэзит
Spanish:Moraesita

Other Information

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

References for Moraesite

Reference List:American Mineralogist (1953): 38: 1126-1133.

Merlino S., & Pasero M.(1992): Crystal chemistry of beryllophosphates: The crystal structure of moraesite, Be2(PO4)(OH).4H2O. Zeitschrift für Kristallographie: 201: 253-262.

Articles/Blogs about Moraesite

Internet Links for Moraesite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Moraesite in the Natural History Museum (London) online catalogue
  • Moraesite details from Handbook of Mineralogy (PDF)
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    Localities for Moraesite

    Hide Locality List
    The 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.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Western Australia
      • Nepean
    		Pinch, W.W. 1978. Rare minerals report. Mineralogical Record, 9(2): 113-114.
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • Divino das Laranjeiras
            • Linópolis
    		No reference listed
          • Galiléia
            • Sapucaia do Norte
    		American Mineralogist (1953): 38: 1126-1133.
        • Mendes Pimentel
    		Pers. Comm. from Paulo Anselmo Matioli
    Finland
     
    • Etelä-Suomen Lääni
      • Orivesi
        • Eräjärvi area
    		No reference listed
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/lovo.htm
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Kamensk-Ural'skii
    USA
     
    • Connecticut
      • Middlesex Co.
    		Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p.234
    • Maine
      • Cumberland Co.
        • Baldwin
    		Collections of Elmar Lackner and Jason B. Smith
      • Oxford Co.
        • Greenwood
    		No reference listed
        • Newry
    		No reference listed
    No reference listed
    No reference listed
        • Paris
    		No reference listed
    • New Hampshire
      • Grafton Co.
        • Alexandria
    		No reference listed
        • Groton
    		Rocks & Min. 80:251
    No reference listed
    No reference listed
    Janules, B. in Micromounters of New England program, May 1991
      • Sullivan Co.
        • Newport
    		No reference listed
    • North Carolina
      • Cleveland Co.
        • Kings Mountain District
    		To many to list here. If interested, we can e-mail them to you.
    Mineral and/or Locality
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