Monetite (original) (raw)
A valid IMA mineral species - grandfathered
About MonetiteHide
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Colour:
White, yellow or colorless; colorless in transmitted light.
Lustre:
Sub-Vitreous, Resinous, Waxy
Name:
Named by Charles Upham Shepard in 1882 for the type locality of Moneto Island, near Puerto Rico, Caribbean, one of the two islands where it was initially found. The locality name is sometimes given as Moneta Island or currently Monito Island.
This page provides mineralogical data about Monetite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2755:3
6340b292-f0a4-492f-8ec5-54207e194028
IMA Classification of MonetiteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Classification of MonetiteHide
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8.AD.10
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
37.1.1.1
37 : ANHYDROUS ACID PHOSPHATES, ARSENATES AND VANADATES
1 : Miscellaneous
19.4.1
19 : Phosphates
4 : Phosphates of Ca
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Mnti | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of MonetiteHide
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Sub-Vitreous, Resinous, Waxy
Comment:
Formerly given inaccurately as vitreous
Colour:
White, yellow or colorless; colorless in transmitted light.
Streak:
Colorless to white
Cleavage:
Imperfect/Fair
On three unspecified planes.
Fracture:
Irregular/Uneven
Density:
2.929 g/cm3 (Measured) 2.924 g/cm3 (Calculated)
Comment:
Measured value on artificial material.
Optical Data of MonetiteHide
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RI values:
_n_α = 1.587 - 1.600 _n_β = 1.615 _n_γ = 1.631 - 1.640
2V:
Measured: 70° , Calculated: 74°
δ = 0.044
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Optical Extinction:
Inclined
Chemistry of MonetiteHide
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Crystallography of MonetiteHide
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Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 6.91 Å, b = 6.627 Å, c = 6.998 Å
α = 96.34°, β = 103.82°, γ = 88.33°
Ratio:
a:b:c = 1.043 : 1 : 1.056
Unit Cell V:
309.28 ų (Calculated from Unit Cell)
Morphology:
Minute crystals forming massive aggregates; crusts, stalactites with rough crystalline surfaces. Crystals have rough surfaces and are frequently configured in interpenetrating groups; commonly flattened {010} with a rhombohedral outline.
Comment:
AC(B) 33:1223 (1977), also JCPDS 9-80 (synthetic)
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009584 | Monetite | Catti M, Ferraris G, Filhol A (1977) Hydrogen bonding in the crystalline state. CaHPO4 (monetite), P-1 or P1? A novel neutron diffraction study Acta Crystallographica B33 1223-1229 |  |
1977 | Synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.37 Å | (70) |
| 3.35 Å | (80) |
| 3.13 Å | (20) |
| 2.96 Å | (100) |
| 2.94 Å | (40) |
| 2.75 Å | (20) |
| 2.72 Å | (40) |
| 1.850 Å | (20) |
Comments:
JCPDS 9-80 (synthetic)
Geological EnvironmentHide
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Type Occurrence of MonetiteHide
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Geological Setting of Type Material:
Formed by the interaction of bird guano in a limestone cave.
Synonyms of MonetiteHide
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Other Language Names for MonetiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Fluorescence of MonetiteHide
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Other InformationHide
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Notes:
Powdered material takes up water from the atmosphere and forms Brushite.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for MonetiteHide
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References for MonetiteHide
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Reference List:
Localities for MonetiteHide
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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
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.