Inesite (original) (raw)
A valid IMA mineral species - grandfathered
About InesiteHide
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Formula:
Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Colour:
Rose-red, pink, orange-pink, orange-red-brown
Specific Gravity:
3.03 - 3.04
Name:
Named by Adolf Schneider in 1887 from the Greek Ίνες (ines), 'flesh fibers', in allusion to its color and habit.
This page provides mineralogical data about Inesite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2031:8
IMA Classification of InesiteHide
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Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Ca2Mn2+7Si10O28(OH)2 · 5H2O
Type description reference:
Classification of InesiteHide
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9.DL.05
9 : SILICATES (Germanates)
D : Inosilicates
L : Inosilicates with 5-periodic double chains, Si10O28
66.3.3.1
66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
3 : Amphiboles - Ca-Na subgroup
14.18.21
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Ins | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Ins | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of InesiteHide
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Colour:
Rose-red, pink, orange-pink, orange-red-brown
Comment:
Weathers to ginger brown
Cleavage:
Perfect
Perfect on {010}
Good on {100}
Fracture:
Irregular/Uneven
Density:
3.03 - 3.04 g/cm3 (Measured) 3.03 g/cm3 (Calculated)
Optical Data of InesiteHide
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RI values:
_n_α = 1.609 _n_β = 1.636 _n_γ = 1.644
2V:
Measured: 60° , Calculated: 56°
δ = 0.035
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Dispersion:
r > v distinct
Optical Extinction:
X ∧ c = 74°; Y ∧ c = 32°; Z ∧ c = 62°.
Chemistry of InesiteHide
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Mindat Formula:
Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Common Impurities:
Fe,Al,Mg,K
Crystallography of InesiteHide
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Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 8.889(2) Å, b = 9.247(2) Å, c = 11.975(3) Å
α = 91.8°, β = 132.58°, γ = 94.37°
Ratio:
a:b:c = 0.961 : 1 : 1.295
Unit Cell V:
718.04 ų (Calculated from Unit Cell)
Morphology:
Slender laths, chisel shaped, fan shaped clusters, fiberous, massive.
Known forms include c{001}, b{010}, a{100}, f{210}, m{110}, M110}, d{011}, g{201}, j{301}, h{311}, e{101}, l{101}, n{301}, o{532}, i{747}, s{946}.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000669 | Inesite | Wan C, Ghose S (1978) Inesite, a hydrated calcium manganese silicate with five-tetrahedral-repeat double chains American Mineralogist 63 563-571 |  |
1978 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.16 Å | (100) |
| 2.92 Å | (80) |
| 2.84 Å | (80) |
| 2.73 Å | (70) |
| 2.19 Å | (60) |
| 4.59 Å | (50) |
| 4.01 Å | (50) |
Comments:
Broken Hill, Australia. Data from Ryall and Threadgold (1968).
Geological EnvironmentHide
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Geological Setting:
Late stage hydrothermal mineral in manganese deposits.
Type Occurrence of InesiteHide
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General Appearance of Type Material:
Radial aggregates of pink-red crystals up to 2 cm long by 1.5 mm.
Place of Conservation of Type Material:
Mineralogisches Museum, Philipps Universität Marburg, Germany, number MMM K35/14 (holotype).
Associated Minerals at Type Locality:
Synonyms of InesiteHide
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Other Language Names for InesiteHide
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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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| 9.DL.10 | Piergorite-(Ce) | Ca8(Ce,Th,La,Nd)2(Al0.5Fe3+0.5)(◻,Li,Be)2Si6B8O36(OH,F)2 | Mon. 2/m : _P_2/b |
|---|
Other InformationHide
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Thermal Behaviour:
In a closed tube, gives off water and turns brown.
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 InesiteHide
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References for InesiteHide
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Localities for InesiteHide
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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.