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Wellsite

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Calvarina Mt., Roncà, Verona Province, Veneto, Italy
© Marco Barsanti

Show Wellsite Photos (12)
Formula:
(Ba,Ca,K
 
2
)Al
 
2
Si
 
6
O
 
16
·6H
 
2
O
System:MonoclinicHardness:4 - 4½
Name:Named after Horace Lemuel Wells (1855-1924), professor of chemistry, Yale University (Connecticut - USA).


Discredited - is either barian Phillipsite-Ca or calcian Harmotome.
Originally described from Buck Creek Mine (Cullakenee Mine), Buck Creek, Clay Co., North Carolina, USA.

Classification of Wellsite

IMA status:Discredited 1997
Hey's CIM Ref.:16.12.13

16 : Silicates Containing Aluminum and other Metals
12 : Aluminosilicates of Sr, Ba and Zn
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Physical Properties of Wellsite

Hardness (Mohs):4 - 4½

Crystallography of Wellsite

Crystal System:Monoclinic
Cell Parameters:a = 9.91Å, b = 14.24Å, c = 8.7Å
β = 124.65°
Ratio:a:b:c = 0.696 : 1 : 0.611
Unit Cell Volume:V 1,009.98 ų (Calculated from Unit Cell)

Optical Data of Wellsite

Type:Biaxial (+)
RI values: nα = 1.499 nβ = 1.501 nγ = 1.504
Maximum Birefringence:δ = 0.005

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:none

Chemical Properties of Wellsite

Formula:
(Ba,Ca,K
 
2
)Al
 
2
Si
 
6
O
 
16
·6H
 
2
O
Essential elements:Al, Ba, H, O, Si
All elements listed in formula:Al, Ba, Ca, H, K, O, Si
Common Impurities:Mg,Sr,Na

Relationship of Wellsite to other Species

Related Minerals - Hey's Index Grouping:

- +
16.12.1Stronalsite
SrNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
16.12.2Slawsonite
(Sr,Ca)[Al
 
2
Si
 
2
O
 
8
]
16.12.3Brewsterite
16.12.4Celsian
Ba[Al
 
2
Si
 
2
O
 
8
]
16.12.5Paracelsian
Ba[Al
 
2
Si
 
2
O
 
8
]
16.12.6Cymrite
BaAl
 
2
Si
 
2
(O,OH)
 
8
·H
 
2
O
16.12.7Edingtonite
Ba[Al
 
2
Si
 
3
O
 
10
] · 4H
 
2
O
16.12.8Banalsite
BaNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
16.12.9Harmotome
(Ba
 
0.5
,Ca
 
0.5
,K,Na)
 
5
[Al
 
5
Si
 
11
O
 
32
] ·12H
 
2
O
16.12.10Hyalophane
(K,Ba)[Al(Si,Al)Si
 
2
O
 
8
]
16.12.11Balipholite
BaLiMg
 
2
Al
 
3
[(OH)
 
4
|Si
 
2
O
 
6
]
 
2
16.12.12Armenite
BaCa
 
2
Al
 
6
Si
 
9
O
 
30
·2H
 
2
O
16.12.14Merlinoite
(K,Na)
 
5
(Ca,Ba)
 
2
Al
 
9
Si
 
23
O
 
64
·23H
 
2
O
16.12.15Anandite
(Ba,K)(Fe
2+
 
,Mg)
 
3
[(O,OH)
 
2
|(Si,Al,Fe)
 
4
O
 
10
]
16.12.16Fraipontite
(Zn,Al)
 
3
[(OH)
 
4
|(Si,Al)
 
2
O
 
5
]
16.12.17Sauconite
Na
 
0.3
Zn
 
3
(Si,Al)
 
4
O
 
10
(OH)
 
2
·4H
 
2
O
16.12.18Minehillite
(K,Na)
 
2-3
Ca
 
28
Zn
 
4
Al
 
4
Si
 
40
O
 
112
(OH)
 
16
16.12.19Hendricksite
K(Zn,Mg,Mn
2+
 
)
 
3
[(OH)
 
2
|AlSi
 
3
O
 
10
]
16.12.20Baileychlore
(Zn,Fe,Al,Mg)
 
6
(Si,Al)
 
4
O
 
10
(OH)
 
8

Other Names for Wellsite

Other Languages:
German:Wellsit
Spanish:Wellsita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Wellsite

Reference List:American Journal of Science (1897): 153: 443.

Can. Mineral. 35 (1997) 1571

Mineralogical Magazine (1998): 62: 571.

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    Localities for Wellsite

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