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Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA

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Detailed Mineral List:

Analcime
Formula:	Na₂(Al₂Si₄O₁₂) · 2H₂O
Localities:	Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA South Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Mount Blanco Mine (Mount Blanco deposit; Mount Blanco adit), Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Mount Blanco area, Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Anhydrite
Formula:	CaSO₄
Locality:	Billie Mine, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Aristarainite
Formula:	Na₂MgB₁₂O₂₀ · 8H₂O
Locality:	South Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Bakerite (TL)
Formula:	Ca₄(H₅B₅Si₃O₂₀)
Type Locality:	Corkscrew Canyon Mine (Corkscrew Mine), Corkscrew Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Reference:	www.mineralsocal.org; Mineralogical Magazine 1903 13 : 353-355.
Localities:	Recorded from at least 3 other localities in this region.




Photo: © John Sobolewski. Bakerite from Corkscrew Canyon Mine, Corkscrew Canyon, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Borax
Formula:	Na₂(B₄O₅)(OH)₄ · 8H₂O
Locality:	Unspecified playas, Furnace Creek area, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Calcite
Formula:	CaCO₃
Localities:	Reported from at least 8 localities in this region.







Celestine
Formula:	SrSO₄
Localities:	Reported from at least 6 localities in this region.






Photo: © 2001 John H. Betts. Celestine from Billie Mine, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
'Chabazite'
Locality:	Mount Blanco area, Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA








'Clay'
Localities:	Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA South Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA








Colemanite
Formula:	Ca[B₃O₄(OH)₃] · H₂O
Localities:	Reported from at least 20 localities in this region.






Photo: © Antonio Borrelli. Colemanite from Mott prospect, Twenty Mule Team Canyon, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Ginorite
Formula:	Ca₂B₁₄O₂₃ · 8H₂O
Localities:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA South Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA East Coleman Mine, East Coleman Hills, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA






Photo: © Simone Citon. Ginorite from East Coleman Mine, East Coleman Hills, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Gowerite (TL)
Formula:	Ca[B₅O₈(OH)][B(OH)₃] · 3H₂O
Type Locality:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Reference:	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.
Localities:	Recorded from at least 8 other localities in this region.




Photo: © Elmar Lackner 2009. Gowerite from Hard Scramble claim, Ryan, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Gypsum
Formula:	CaSO₄ · 2H₂O
Localities:	Billie Mine, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Corkscrew Canyon Mine (Corkscrew Mine), Corkscrew Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Oliver claim (Neglect claim; Oliver Consolidated claim), Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA






Photo: © Rob Lavinsky. Gypsum from Corkscrew Canyon Mine, Corkscrew Canyon, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Halite
Formula:	NaCl
Locality:	Twenty Mule Team Road, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Howlite
Formula:	Ca₂B₅SiO₉(OH)₅
Localities:	Billie Mine, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Gower Gulch Mine, Gower Gulch, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Hungchaoite
Formula:	Mg(B₄O₇) · 9H₂O
Localities:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA South Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Unnamed Borate occurrence, Twenty Mule Team Canyon mouth area, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Hydroboracite
Formula:	CaMg[B₃O₄(OH)₃]₂ · 3H₂O
Localities:	Mount Blanco Mine (Mount Blanco deposit; Mount Blanco adit), Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA






Photo: © 2009, JGW. Hydroboracite from Mount Blanco Mine, Mount Blanco, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
'Iddingsite'
Formula:	MgO · Fe₂O₃ · 3SiO₂·4H₂O
Locality:	Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Inderite
Formula:	MgB₃O₃(OH)₅ · 5H₂O
Locality:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Inyoite (TL)
Formula:	Ca(H₄B₃O₇)(OH) · 4H₂O
Type Locality:	Mount Blanco Mine (Mount Blanco deposit; Mount Blanco adit), Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Habit:	Tabular
Colour:	White
Description:	Occurs as tabular crystals altering to meyerhofferite.
Reference:	Journal of the Washington Academy of Sciences (1914): 4: 354-356; 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: 359; Schaller, Waldemar Theodore (1916b), Inyoite and meyerhofferite, two new calcium borates: USGS Bulletin 610: 35; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 264.
Localities:	Recorded from at least 2 other localities in this region.

Photo: © JSS. Inyoite from Mount Blanco Mine, Mount Blanco, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Kurnakovite
Formula:	MgB₃O₃(OH)₅ · 5H₂O
Locality:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Mcallisterite (TL)
Formula:	Mg₂[B₆O₇(OH)₆]₂ · 9H₂O
Type Locality:	Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Colour:	White
Description:	Occurs as a minor constituent of efflorescence layer of fine-grained borates near weathered outcrops of colemanite and priceite. Small pellets 1 to 2 mm diameter.
Reference:	Schaller, Waldemar Theodore, et al (1965), American Mineralogist: 65: 629-640; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 240.
Localities:	Recorded from at least 3 other localities in this region.



Meyerhofferite (TL)
Formula:	Ca₂(H₃B₃O₇)₂ · 4H₂O
Type Locality:	Mount Blanco Mine (Mount Blanco deposit; Mount Blanco adit), Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Colour:	White
Description:	Occurs as chalky to silky pseudomorphs after inyoite, as alteration coatings on inyoite crystals, and as long, glassy, interlaced crystals formed by recrystallization of the original fibrous material.
Reference:	Journal of the Washington Academy of Science (1914): 4: 354-356; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, 7th. ed., Volume II: 357, 359; Schaller, Waldemar Theodore (1916b), Inyoite and meyerhofferite, two new calcium borates: USGS Bulletin 610: 35; Foshag, William Frederick (1921), The origin of the colemanite deposits of California: Economic Geology: 16: 200; Foshag, William Frederick (1924a), Famous mineral localities: Furnace Creek, Death Valley, California: American Mineralogist: 9: 10; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 264.
Localities:	Recorded from at least 5 other localities in this region.


Photo: © John Sobolewski. Meyerhofferite from Mount Blanco Mine, Mount Blanco, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Mirabilite
Formula:	Na₂SO₄ · 10H₂O
Locality:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Montmorillonite
Formula:	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Localities:	Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Natrolite
Formula:	Na₂Al₂Si₃O₁₀ · 2H₂O
Locality:	Mount Blanco area, Mount Blanco, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Nobleite (TL)
Formula:	CaB₆O₉(OH)₂ · 3H₂O
Type Locality:	Nobleite locality, De Bely Mine area, De Bely Mine (Debely Mine), Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Reference:	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: 560-571.
Localities:	Recorded from at least 5 other localities in this region.




Photo: © Caltech. Nobleite from Corkscrew Canyon Mine, Corkscrew Canyon, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Priceite
Formula:	Ca₂B₅O₇(OH)₅ · H₂O
Localities:	Reported from at least 8 localities in this region.






Photo: © . Priceite from Mott prospect, Twenty Mule Team Canyon, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Probertite
Formula:	NaCaB₅O₇(OH)₄ · 3H₂O
Localities:	Billie Mine, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Widow No. 7 Mine (Old Widow), Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Biddy McCarthy Mine, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Widow No. 1 Mine (Widow Mine), Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Rivadavite
Formula:	Na₆Mg[B₆O₇(OH)₆]₄ · 10H₂O
Locality:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Sassolite
Formula:	H₃BO₃
Localities:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA South Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA East Coleman Mine, East Coleman Hills, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Sborgite
Formula:	Na[B₅O₆(OH)₄] · 3H₂O
Localities:	South Meridian claim, Monte Blanco, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Twenty Mule Team Road, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Widow No. 3 Mine (New Widow), Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Searlesite
Formula:	Na(H₂BSi₂O₇)
Locality:	Ancient Seeps in Terraces site, Furnace Creek area, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Strontianite
Formula:	SrCO₃
Locality:	Billie Mine, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Thenardite
Formula:	Na₂SO₄
Localities:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Twenty Mule Team Road, Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Thermonatrite
Formula:	Na₂CO₃ · H₂O
Localities:	Twenty Mule Team Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Widow No. 3 Mine (New Widow), Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Todorokite
Formula:	(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)₆O₁₂ · 3H₂O
Localities:	Nobleite locality, De Bely Mine area, De Bely Mine (Debely Mine), Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA Corkscrew Canyon Mine (Corkscrew Mine), Corkscrew Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Tunellite
Formula:	SrB₆O₉(OH)₂ · 3H₂O
Locality:	Furnace Creek area, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Ulexite
Formula:	NaCa[B₅O₆(OH)₆] · 5H₂O
Localities:	Reported from at least 14 localities in this region.






Photo: © JSS. Ulexite from Twenty Mule Team Canyon, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
'Uvite'
Formula:	Ca(Mg₃)MgAl₅(Si₆O₁₈)(BO₃)₃(OH)₃(F/OH)
Locality:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA







Veatchite
Formula:	Sr₂B₁₁O₁₆(OH)₅ · H₂O
Locality:	Billie Mine, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA






Photo: © 2008 Jesse Crawford. Veatchite from Billie Mine, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Veatchite-p
Formula:	Sr₂B₁₁O₁₆(OH)₅ · H₂O
Locality:	Billie Mine, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA






Photo: © 2008, JGW. Veatchite-p from Billie Mine, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Wardsmithite (TL)
Formula:	Ca₅Mg[B₄O₇]₆ · 30H₂O
Type Locality:	Hard Scramble claim, Ryan, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Description:	Occurs as a weathering product of colemanite-priceite veins. Fine-grained, soft clots up to0 75 microns diameter; less complex single crystals to 15 microns diameter and 2 micorns thick.
Reference:	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.
Localities:	Recorded from at least 2 other localities in this region.

43 entries listed. 39 valid minerals. 7 type localities (valid minerals).

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