Wellsite
A variety of Phillipsite Subgroup
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About Wellsite
Horace Lemuel Wells
Formula:
(K,Ba,Ca,K2)Al2Si6O16 · 6H2O
Colour:
Colorless, white
Lustre:
Sub-Vitreous
Hardness:
4 - 4½
Specific Gravity:
2.25
Crystal System:
Monoclinic
Name:
Wellsite is a barian Phillipsite-Ca. Originally described from from Buck Creek Mine (Cullakenee Mine), Buck Creek, Clay Co., North Carolina, USA by Joseph Hyde Pratt and Henry W. Foote in 1897 in honor of Horace L. Wells [October 5, 1855 New Britain, Connecticut, USA - December 19, 1924 New Haven, Connecticut, USA]. Wells was an important mineral chemist and educator. He named the new species beryllonite, but is especially noted for his research on the chemistry of cesium and rubidium using lepidolite from Mount Mica, Paris, Maine and pollucite from Mount Rubellite, Hebron, Maine, USA. Wells also researched granite pegmatites, phosphate minerals, nitrates, thallium, selenium, tellurium, halogens, and cyanides. He also authored books on chemical calculations and analytical techniques.
First Recorded Locality:
A variety of Phillipsite Subgroup
Old name for Ba-bearing to -rich phillipsite. Fairly common in various rocks. The Ba-dominant endmember is harmotome.
Usually occurs as small, white to colorless square twinned prisms.
Old name for Ba-bearing to -rich phillipsite. Fairly common in various rocks. The Ba-dominant endmember is harmotome.
Usually occurs as small, white to colorless square twinned prisms.
Unique Identifiers
Mindat ID:
4265 (as Wellsite)
3192 (as Phillipsite Subgroup)
3192 (as Phillipsite Subgroup)
Long-form identifier:
mindat:1:1:4265:5 (as Wellsite)
mindat:1:1:3192:5 (as Phillipsite Subgroup)
mindat:1:1:3192:5 (as Phillipsite Subgroup)
GUID
(UUID V4):
(UUID V4):
02762e46-e0d9-4f9d-baed-c1210550c07c (as Wellsite)
08049e6a-8e1b-423f-b594-32424c74f19b (as Phillipsite Subgroup)
08049e6a-8e1b-423f-b594-32424c74f19b (as Phillipsite Subgroup)
IMA Classification of Wellsite
Discredited
Classification of Wellsite
16.12.13
16 : Silicates Containing Aluminum and other Metals
12 : Aluminosilicates of Sr, Ba and Zn
16 : Silicates Containing Aluminum and other Metals
12 : Aluminosilicates of Sr, Ba and Zn
Pronunciation of Wellsite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Wellsite
Sub-Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless, white
Hardness:
4 - 4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Distinct on the {010}, indistinct on the {001}
Distinct on the {010}, indistinct on the {001}
Density:
2.25 g/cm3 (Measured)
Optical Data of Wellsite
Type:
Biaxial (+)
RI values:
nα = 1.499 nβ = 1.501 nγ = 1.504
2V:
Measured: 45°
Birefringence:
0.0050
Max Birefringence:
δ = 0.005
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none
Chemistry of Wellsite
Mindat Formula:
(K,Ba,Ca,K2)Al2Si6O16 · 6H2O
Common Impurities:
Mg,Sr,Na
Crystallography of Wellsite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 9.91 Å, b = 14.24 Å, c = 8.7 Å
β = 124.65°
β = 124.65°
Ratio:
a:b:c = 0.696 : 1 : 0.611
Unit Cell V:
1,009.98 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Rod-like crystals with square cross-section
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.1 Å | (30) |
| 7.2 Å | (30) |
| 6.4 Å | (30) |
| 5.0 Å | (20) |
| 4.07 Å | (80b) |
| 3.153 Å | (100b) |
| 2.903 Å | (20) |
| 2.688 Å | (80b) |
| 2.501 Å | (30) |
| 2.342 Å | (30b) |
| 2.217 Å | (10) |
| 2.131 Å | (30) |
| 2.040) Å | (30) |
| 1.939 Å | (30) |
| 1.802 Å | (10) |
| 1.762 Å | (20) |
| 1.699 Å | (50) |
| 1.667 Å | (10) |
| 1.635 Å | (10) |
| 1.585 Å | (10) |
| 1.528 Å | (30) |
| 1.474 Å | (20) |
| 1.420 Å | (10b) |
| 1.365 Å | (50) |
| 1.321 Å | (20) |
| 1.263 Å | (20b) |
| 1.209 Å | (10b) |
| 1.168 Å | (20b) |
Comments:
ICDD 12-541 (Vezna, Czech Republic)
First Recorded Occurrence of Wellsite
Other Language Names for Wellsite
Common Associates
Associated Minerals Based on Photo Data:
Other Information
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 Wellsite
mindat.org URL:
https://www.mindat.org/min-4265.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
References for Wellsite
Reference List:
Coombs, Douglas S., Alberti, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, Nickel, Ernest H., Passaglia, Elio, Peacor, Donald R., Quartieri, Simona, Rinaldi, Romano, Ross, Malcolm I., Sheppard, Richard A., Tillmanns, Ekkehart, Vezzalini, Giovanna (1997) Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35 (6) 1571-1606
Localities for Wellsite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Austria | |
| - (n.d.) +1 other reference |
| Niedermayr et al. (1995) |
| Exel (1993) |
| Postl et al. (1996) |
Czech Republic | |
| M.Radoň-Významné mineralogické lokality Českého středohoří (čas.Minerál 2/2009) |
| Canadian Mineralogist +1 other reference |
| Mineralogical Magazine 1963 33 : 450-457 +1 other reference | |
France | |
| Ch. Robert : "Barian phillipsite and ... |
| Ch. Robert : "Barian phillipsite and ... |
Germany | |
| |
Italy | |
| Galli (1972) +2 other references |
| Capolupi (1995) | |
UK | |
| Adair (1986) +1 other reference |
Ukraine | |
| World of Stones v.9 | |
| A. Tischenko. Minerals of the Crimea - ... |
| Dvoichenko (1914) +1 other reference |
USA | |
| Van Nostrand Reinholt Press: 383 +3 other references |
| Rocks & Minerals 79:5 pp316-324 |
| Wayne C. Shanks et al. (2012) | |
| Pratt et al. (Clay County,North Carolina,American Journal Of Science,Series 4,Vol 3.June 1897,P.443-448) |
| Miklancic collection #1742/77 |
| Bargar et al. (1997) |
Quick NavTopAbout WellsiteUnique IdentifiersIMA Classification Classification Pronunciation Physical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionFirst Recorded Occurrence Other LanguagesCommon AssociatesOther InformationInternet Links References Localities Locality List
Buck Creek Mine, Buck Creek, Clay County, North Carolina, USA