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Calcioursilite

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Formula:
Ca4(UO2)4(Si2O5)5(OH)6 · 15H2O
Colour:
Lemon yellow
Name:
For chemical composition: Uranyl and calcium silicate
This page provides mineralogical data about Calcioursilite.

Classification of Calcioursilite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.AK.35

9 : SILICATES (Germanates)
A : Nesosilicates
K : Uranyl neso- and polysilicates
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First Recorded Occurrence of Calcioursilite

General Appearance of First Recorded Material:
Forms acicular crystals, spherulites and earthy masses.
Geological Setting of First Recorded Material:
Forms in granite-porphyry.

Physical Properties of Calcioursilite

Earthy
Colour:
Lemon yellow

Chemical Properties of Calcioursilite

Formula:
Ca4(UO2)4(Si2O5)5(OH)6 · 15H2O
All elements listed in formula:

Relationship of Calcioursilite to other Species

9.AK.05Soddyite(UO2)2SiO4 · 2H2O
9.AK.10CuprosklodowskiteCu(UO2)2[HSiO4]2 · 6H2O
9.AK.10Oursinite(Co,Mg)(UO2)2[HSiO4]2 · 6H2O
9.AK.10SklodowskiteMg(UO2)2[HSiO4]2 · 5H2O
9.AK.15Boltwoodite(K,Na)(UO2)[HSiO4] · 0.5H2O
9.AK.15KasolitePb(UO2)[SiO4] · H2O
9.AK.15Natroboltwoodite(H3O)(Na,K)UO2SiO4 · H2O
9.AK.15Uranophane-βCa(UO2)2(HSiO4)2 · 5H2O
9.AK.15UranophaneCa(UO2)2[HSiO4]2 · 5H2O
9.AK.15Beta-Uranophane
9.AK.20SwamboiteUH6(UO2)6(SiO4)6 · 30H2O
9.AK.25HaiweeiteCa(UO2)2[Si5O12(OH)2] · 6H2O
9.AK.25MetahaiweeiteCa(UO2)2Si6O15 · nH2O
9.AK.25Ranquilite
9.AK.30WeeksiteK2(UO2)2(Si5O13) · 4H2O
9.AK.30CoutinhoiteThxBa(1-2x)(UO2)2Si5O13 · (H2O)1+y (0 < x < 0.5 and 0 < y < (2+x))
9.AK.35Ursilite(Mg,Ca)4(UO2)4(Si2O5)5.5(OH)5 · 13H2O
9.AK.35MagnioursiliteMg4(UO2)4(Si2O5)5(OH)6 · 20H2O
9.AK.40UranosiliteUO3 · 7SiO2

Other Names for Calcioursilite

Name in Other Languages:

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.

References for Calcioursilite

Reference List:
Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 106 (1977), 553

Internet Links for Calcioursilite

Localities for Calcioursilite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Tajikistan
 
  • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
    • Khodzhent (Leninabad)
      • Kyzyltyube-Sai
ZVMO (1977) 106, 533; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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