Hedyphane (original) (raw)
A valid IMA mineral species - grandfathered
About HedyphaneHide
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Colour:
White, yellowish white, buff, bluish; colourless in transmitted light.
Name:
First described from Långban, Sweden and named in 1830 by Johann Friedrich August Breithaupt from the Greek ηδύς for "sweet" or "beautiful" and φαίνεσθαι, "to appear", in allusion to the typical appearance and luster of specimens. Redefined in 1926 by William Foshag and Robert Gage and then redefined by Roland C. Rouse, Pete J. Dunn, and Donald R. Peacor (1984).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1844:5
1d0d9c26-f0c0-41ed-a0ee-836451b3e7ea
IMA Classification of HedyphaneHide
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Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Classification of HedyphaneHide
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8.BN.05
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
41.8.2.1
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq
22.2.17
22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride
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 |
|---|---|---|
| Hdp | 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 HedyphaneHide
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Colour:
White, yellowish white, buff, bluish; colourless in transmitted light.
Density:
5.82 g/cm3 (Measured)
Optical Data of HedyphaneHide
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RI values:
_n_ω = 1.948 - 2.010 _n_ε = 1.958 - 2.030
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of HedyphaneHide
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Mindat Formula:
Ca2Pb3(AsO4)3Cl
Crystallography of HedyphaneHide
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Class (H-M):
6/m m m _(_6/_m_2/_m_2/m ) - Dihexagonal Dipyramidal
Cell Parameters:
a = 10.14 Å, c = 7.185 Å
Morphology:
Crystals prismatic [0001]; also pyramidal to thick tabular {0001}. Massive.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000957 | Hedyphane | Rouse R C, Dunn P J, Peacor D R (1984) Hedyphane from Franklin, New Jersey and Langban, Sweden: Cation ordering in an arsenate apatite sample H90417 from Langban, Sweden American Mineralogist 69 920-927 |  |
1984 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.77 Å | (40) |
| 5.070 Å | (40) |
| 4.135 Å | (50) |
| 3.586 Å | (70) |
| 3.014 Å | (100) |
| 2.929 Å | (80) |
| 1.943 Å | (80) |
Geological EnvironmentHide
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Geological Setting:
Metamorphosed stratiform zinc orebody (Franklin).
Type Occurrence of HedyphaneHide
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General Appearance of Type Material:
As finger thick fission filling in garnet-pyroxene matrix.
Geological Setting of Type Material:
Metamorphosed manganese deposit.
Synonyms of HedyphaneHide
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Other Language Names for HedyphaneHide
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Varieties of HedyphaneHide
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| Baryt-Hedyphane | A barium variety of Mimetite described from a dealer's label in the British Museum (NH) [now the Natural History Museum, London] collection. |
|---|
Relationship of Hedyphane to other SpeciesHide
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Other Members of Hedyphane Group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Fluorescence of HedyphaneHide
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LW UV ligt: Non fluorescent
SW UV light: faint orange
Other InformationHide
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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 HedyphaneHide
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References for HedyphaneHide
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Reference List:
Localities for HedyphaneHide
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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.