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Ginorite

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Formula:
Ca2B14O23 · 8H2O
System:
Monoclinic
Colour:
White
Hardness:
Name:
After Piero Ginori Conti, of Florence, Italy, a leader in development of the Tuscan borax industry.
Ginorite Group. The calcium analogue of Strontioginorite.

Classification of Ginorite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
6.FC.15

6 : BORATES
F : Hexaborates
C : Phyllo-hexaborates
26.6.7.1

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
6 : Hexaborates
9.3.19

9 : Borates
3 : Borates of Ca and Sr
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First Recorded Occurrence of Ginorite

Year of Discovery:
1934
Geological Setting of First Recorded Material:
Veins in sandstone
Associated Minerals at First Recorded Locality:

Physical Properties of Ginorite

Diaphaneity (Transparency):
Transparent, Translucent
Colour:
White
Hardness (Mohs):
Cleavage:
Distinct/Good
On {010} with unstated quality.
Density:
2.09 g/cm3 (Measured)    

Crystallography of Ginorite

Crystal System:
Monoclinic
Cell Parameters:
a = 13.37Å, b = 14.36Å, c = 12.26Å
β = 101.2°
Ratio:
a:b:c = 0.931 : 1 : 0.854
Unit Cell Volume:
V 2,309.01 ų (Calculated from Unit Cell)
Morphology:
Crystals are flat tablets {010}. Dense masses.

Optical Data of Ginorite

Type:
Biaxial (+)
RI values:
nα = 1.517 nβ = 1.524 nγ = 1.577
2V:
Measured: 42° , Calculated: 42°
Max Birefringence:
δ = 0.060
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of Ginorite

Formula:
Ca2B14O23 · 8H2O
Essential elements:
All elements listed in formula:

Relationship of Ginorite to other Species

6.FC.05TunelliteSrB6O9(OH)2 · 3H2O
6.FC.05NobleiteCaB6O9(OH)2 · 3H2O
6.FC.10StrontioboriteSrB8O11(OH)4
6.FC.15Strontioginorite(Sr,Ca)2B14O23 · 8H2O
6.FC.20FabianiteCaB3O5OH
9.3.1CalciboriteCa(B2O4)
9.3.2SibirskiteCa2(HB2O5)(OH)
9.3.3FabianiteCaB3O5OH
9.3.4UralboriteCa2[B3O3(OH)5 · OB(OH)3]
9.3.5VimsiteCaB2O2(OH)4
9.3.6OlshanskyiteCa3[B(OH)4]4(OH)2
9.3.7FroloviteCa[B(OH)4]2
9.3.8KorzhinskiteCa(B2O4) · H2O
9.3.9TyretskiteCa2B5O9OH · H2O
9.3.10NifontoviteCa3B6O6(OH)12(H2O)2
9.3.12InyoiteCa(H4B3O7)(OH) · 4H2O
9.3.13GoweriteCa[B5O8(OH)][B(OH)3] · 3H2O
9.3.14ColemaniteCa[B3O4(OH)3] · H2O
9.3.15PentahydroboriteCaB2O(OH)6 · 2H2O
9.3.16HexahydroboriteCa[B(OH)4]2 · 6H2O
9.3.17MeyerhofferiteCa2(H3B3O7)2 · 4H2O
9.3.18PriceiteCa2B5O7(OH)5 · H2O
9.3.20ProbertiteNaCaB5O7(OH)4 · 3H2O
9.3.21UlexiteNaCa[B5O6(OH)6] · 5H2O
9.3.22HydroboraciteCaMg[B3O4(OH)3]2 · 3H2O
9.3.23InderboriteCaMg(H3B3O7)2 · 8H2O
9.3.24WardsmithiteCa5Mg[B4O7]6 · 30H2O
9.3.25HenmiliteCa2Cu[B(OH)4]2(OH)4
9.3.26StrontioboriteSrB8O11(OH)4
9.3.27VeatchiteSr2B11O16(OH)5 · H2O
9.3.28Veatchite-ASr2B11O16(OH)5 · H2O
9.3.29 P-Veatchite
9.3.30 BalavinskiteSr2B6O11 · 4H2O
9.3.31TunelliteSrB6O9(OH)2 · 3H2O
9.3.32Strontioginorite(Sr,Ca)2B14O23 · 8H2O

Other Names for Ginorite

Name in Other Languages:
Simplified Chinese:水硼钙石
Traditional Chinese:水硼鈣石

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 Ginorite

Reference List:
D'Achiardi (1934) Periodico de Mineralogia-Roma: 5: 22.

American Mineralogist (1935): 20: 403.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 364-365.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for Ginorite

Localities for Ginorite

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.
(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.
Argentina
 
  • Salta
    • Salar Del Hombre Muerto
Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, p. 497.; Alonso, R. N. (1999). On the origin of La Puna borates. Acta geológica hispánica, 34(2), 141-166.; CAHIT HELVACI & RICARDO N. ALONSO (2000) Borate Deposits of Turkey and Argentina; A Summary and Geological Comparison. Turkish Journal of Earth Sciences, 9:1-27.
Canada
 
  • Nova Scotia
    • Hants Co.
      • Windsor
Henry How, "On Natro-boro-calcite and another Borate occurring in the Gypsum of Nova Scotia", The American Journal of Science and Arts, Second Series, Vol. 32, pg. 9-13, Nov 1861.
Italy
 
  • Tuscany
    • Pisa Province
      • Castelnuovo Val di Cecina
D'Achiardi (1934) "Ginorite, nuovo borato di calcio di Sasso Pisano" Per. Min.: no. 5: 22-32; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 364.
Kazakhstan
 
  • Aktobe Province (Aqtöbe Oblysy; Aktubinskaya Oblast')
    • Aksai Valley
Handbook of Mineralogy Vol V p 6; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Atyrau Province (Atyrau Oblysy; Atyrau Oblast')
    • Atyrau (Gur'yev)
Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30; Pekov, I. V. & Abramov, D. V. (1993): Boron deposit of the Inder and its minerals. World of Stones, 1, 23-30.
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
Garrett, Donald E. (1998) Borates. Handbook of Deposits, Processing, Properties, and Use.
USA
 
  • Alabama
    • Clarke Co.
Mineralogy of Alabama Geol Surv Ala. Bull120
  • California
    • Inyo Co.
      • Death Valley
        • Furnace Creek
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 238, 254.
      • Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area)
        • Ryan
Erd, R.C., J.F. McAllister & H. Almond (1959), Gowerite, a new hydrous calcium borate from Death Valley, California: American Mineralogist: 44: 911-919; Erd, R.C., J.F. McAllister, and A.C. Vlisidis (1970) Wardsmithite 5CaO • MgO •12B2O3 •30H2O, a new borate mineral from the Death Valley region, California. American Mineralogist: 55: 349-357; www.mineralsocal.org.
        • Twenty Mule Team Canyon
Allen, Robert D. (1957): 198; Allen, Robert D. & Henry C. Kramer (1957), Ginorite and sassolite from Death Valley, California, American Mineralogist: 42: 56-61; Erd, R.C., J.F. McAllister & H. Almond (1959), Gowerite, a new hydrous calcium borate from Death Valley, California: American Mineralogist: 44: 913; Erd, R.C., J.F. McAllister & A.C. Vlisidis (1961), Nobleite, another new hydrous calcium borate from the Death Valley region, California: American Mineralogist: 46: 561; Schaller, Waldemar Theodore, et al (1965), American Mineralogist: 65: 629-640; Erd, R.C., J.F. McAllister, and A.C. Vlisidis (1970) Wardsmithite 5CaO • MgO •12B2O3 •30H2O, a new borate mineral from the Death Valley region, California. American Mineralogist: 55: 350; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 254.
Am Min 64:3-4 pp 369-375; Erd, R.C., J.F. McAllister, and G.D. Eberlein (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist: 64: 369-375.
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