Veatchite (original) (raw)
A valid IMA mineral species - grandfathered
About VeatchiteHide
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Formula:
Sr2B11O16(OH)5 · H2O
Lustre:
Vitreous, Silky, Pearly
Specific Gravity:
2.58 - 2.69
Crystal System:
Monoclinic
Name:
Named in honor of John Allen Veatch (5 March 1808, Knox County, Kentucky, USA - 24 April 1870, Portland, Texas, USA), surgeon, surveyor, and scientist. He was the first person to detect boron in the mineral waters of California in 1856.
The three known polytypes of veatchite (1A, 1M, 2M) are described by Grice & Pring (2012).
The SrCa-ordered analogue is called calcioveatchite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:4166:5
073ee155-3dae-47f9-a63e-a7be8bc4c930
IMA Classification of VeatchiteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Classification of VeatchiteHide
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6.EC.15
6 : BORATES
E : Pentaborates
C : Phyllo-pentaborates
26.5.9.1
26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
5 : Pentaborates
9.3.27
9 : Borates
3 : Borates of Ca and Sr
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 |
|---|---|---|
| Vea | 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 VeatchiteHide
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Transparency:
Transparent, Translucent
Comment:
pearly on cleavages; silky in fibrous masses
Cleavage:
Perfect
On {010} perfect; on {001} imperfect.
Density:
2.58 - 2.69 g/cm3 (Measured) 2.59 g/cm3 (Calculated)
Optical Data of VeatchiteHide
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RI values:
_n_α = 1.551 _n_β = 1.553 _n_γ = 1.620
2V:
Measured: 37° , Calculated: 22°
δ = 0.069
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of VeatchiteHide
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Mindat Formula:
Sr2B11O16(OH)5 · H2O
Crystallography of VeatchiteHide
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Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
| Veatchite-1M | Veatchite-2M | Veatchite-A |
|---|---|---|
| Sr2B11O16(OH)5 · H2O | Sr2B11O16(OH)5 · H2O | Sr2B11O16(OH)5 · H2O |
| Monoclinic | Monoclinic | Triclinic |
| 2 - Sphenoidal | m - Domatic | 1 - Pedial |
| _P_21 | B b | _P_1 |
| _P_21 | C c | |
| a = 6.7127(4) Å, b = 20.704(1) Å, c = 6.6272(4) Åβ = 119.209(1)° | a = 6.6070(3) Å, b = 11.7125(5) Å, c = 20.6848(9) Åβ = 91.998(1)° | a = 6.7378(6) Å, b = 6.7387(6) Å, c = 20.982(2) Åα = 87.860(1)°, β = 82.696(12)°, γ = 60.476(1)° |
| a:b:c = 0.324 : 1 : 0.32 | a:b:c = 0.564 : 1 : 1.766 | a:b:c = 1 : 1 : 3.114 |
| V 803.93 ų(Calculated from Unit Cell) | V 1,599.71 ų(Calculated from Unit Cell) | V 821.88 ų(Calculated from Unit Cell) |
| 2 | 4 | 2 |
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000265 | Veatchite | Clark J R, Christ C L (1971) Veatchite: Crystal structure and correlations with p-veatchite American Mineralogist 56 1934-1954 |  |
1971 | old colemanite mine, Lang, Los Angeles County, California, USA | 0 | 293 |
| 0018910 | Veatchite | Grice J D, Pring A (2012) Veatchite: structural relationships of the three polytypes American Mineralogist 97 489-495 | 2012 | Emet deposit, Kutahya, Turkey | 0 | 293 | |
| 0018911 | Veatchite | Grice J D, Pring A (2012) Veatchite: structural relationships of the three polytypes American Mineralogist 97 489-495 | 2012 | Konigshall-Hindenburg potash-salt mine, Reyershausen, Germany | 0 | 293 | |
| 0018912 | Veatchite | Grice J D, Pring A (2012) Veatchite: structural relationships of the three polytypes American Mineralogist 97 489-495 | 2012 | Penobsquis deposit, Sussex, New Brunswick, Canada | 0 | 293 | |
| 0018907 | Veatchite | Rumanova I M, Gandymov O (1971) The crystal structure of the natural strontium borate, p-veatchite, Sr2[B5O8(OH)]2*B(OH)3*H2O Soviet Physics Crystallography 16 75-81 | 1971 | Inderskii formation, Kazakh SSR | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 10.5 Å | (100) |
| 3.32 Å | (35) |
| 2.600 Å | (25) |
| 3.47 Å | (20) |
| 2.865 Å | (9) |
| 5.64 Å | (6) |
| 5.12 Å | (6) |
Geological EnvironmentHide
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Type Occurrence of VeatchiteHide
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General Appearance of Type Material:
Cross-fiber veinlets cutting limestone and howlite and as crystals deposited on colemanite.
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, 92944; National Museum of Natural History, Washington, D.C., USA, 105697.
Geological Setting of Type Material:
Limestone and borate deposit.
Associated Minerals at Type Locality:
Reference:
Switzer, G.S. (1938) Veatchite, a new calcium borate from Lang, California. American Mineralogist: 23: 409-411.
Synonyms of VeatchiteHide
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Other Language Names for VeatchiteHide
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Simplified Chinese:水硼锶石
Traditional Chinese:水硼鍶石
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Other InformationHide
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IR Spectrum:
Inder material [cm-1]: 3440, 3340, 3280sh, 3230sh, 3105, 1650w, 1490, 1435sh, 1372s, 1265s, 1102s, 1071s, 992s, 962, 936s, 857, 823s, 769, 703, 677w, 641w, 631, 606, 570w, 489w, 478w, 460w
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 VeatchiteHide
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References for VeatchiteHide
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Reference List:
Localities for VeatchiteHide
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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.