Quick Links : The Mindat Manual The Rock H. Currier Digital Library Mindat Newsletter [Free Download]

Home Page About Mindat The Mindat Manual History of Mindat Copyright Status Who We Are Contact Us Advertise on Mindat

Donate to Mindat Corporate Sponsorship Sponsor a Page Sponsored Pages Mindat Advertisers Advertise on Mindat

Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time Explore Fossils

Minerals by Properties Minerals by Chemistry Mineral Visual Explorer Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz Time Machine

Photo Search Photo Galleries Search by Color Photo Colour Explorer New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA i
Regional Level Types
Twenty Mule Team Canyon Canyon
Furnace Creek Mining District (Furnace Creek Borate Mining District) Mining District
Inyo County County
California State
USA Country

Regional Level Types
Twenty Mule Team Canyon	Canyon
Furnace Creek Mining District (Furnace Creek Borate Mining District)	Mining District
Inyo County	County
California	State
USA	Country

This page is currently not sponsored. Click here to sponsor this page.

Photos Maps Search Mineralogy

Standard

Specimen Photos (19)Photos by Color Gallery Photo Statistics Add Photo

Map Pages Nearest Localities

Mineral Search Similar Localities Nearest Localities Search Google

Predictive Mineralogy

Bakerite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Priceite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Gypsum

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Bakerite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Priceite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Gypsum

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Bakerite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Priceite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Latitude & Longitude (WGS84):

36° 24' 33'' North , 116° 47' 43'' West

Latitude & Longitude (decimal):

Type:

Köppen climate type:

BWh : Hot deserts climate

Nearest Settlements:

Place	Population	Distance
Beatty	1,010 (2011)	55.6km

Mindat Locality ID:

218692

Long-form identifier:

mindat:1:2:218692:7

GUID (UUID V4):

A valley located just E of the Black Mountains, on the western margin of the Furnace Creek Wash.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

20 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

ⓘ Analcime

Formula: Na(AlSi₂O₆) · H₂O

Localities:

Description: Residual material.

ⓘ Aristarainite

Formula: Na₂MgB₁₂O₂₀ · 8H₂O

Locality: South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

Erd, Richard C., McAllister, James F., Eberlein, G. Donald (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist, 64 (3-4) 369-375

ⓘ 'Clay minerals'

Localities:

ⓘ Colemanite

Formula: Ca[B₃O₄(OH)₃] · H₂O

Localities: Reported from at least 9 localities in this region.

ⓘ Ginorite

Formula: Ca₂B₁₄O₂₀(OH)₆ · 5H₂O

Localities:

South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

ⓘ Gowerite

Formula: Ca[B₅O₈(OH)][B(OH)₃] · 3H₂O

Localities:

Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Unnamed Borate occurrence [29], Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Locality: Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

Erd, R. C., McAllister, J. F., Almond, H. (1959) Gowerite, a new hydrous calcium borate from the Death Valley region, California. American Mineralogist, 44 (9-10) 911-919

Schaller, Waldemar T., Vlisidis, Angelina C., Mrose, and Mary E. (1965) Macallisterite, 2MgO·6B₂O₃·15H₂O, a new hydrous magnesium borate mineral from the Death Valley region, Inyo County, California. American Mineralogist, 50 (5-6) 629-640

ⓘ Halite

Formula: NaCl

Locality: Twenty Mule Team Road occurrences, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

McAllister, James Franklin (1961), Sborgite in the Furnace Creek area, California: USGS PP 424-B, Article 129: 300-301

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Hungchaoite

Formula: Mg(B₄O₇) · 9H₂O

Localities:

Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Unnamed Borate occurrence [28], Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

ⓘ Hydroboracite

Formula: CaMg[B₃O₄(OH)₃]₂ · 3H₂O

Locality: Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

Erd, R. C., McAllister, J. F., Almond, H. (1959) Gowerite, a new hydrous calcium borate from the Death Valley region, California. American Mineralogist, 44 (9-10) 911-919

ⓘ Mcallisterite (TL)

Formula: Mg₂[B₆O₇(OH)₆]₂ · 9H₂O

Localities:

Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

Type Locality: Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, 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.

ⓘ Meyerhofferite

Formula: CaB₃O₃(OH)₅ · H₂O

Locality: Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

Erd, R. C., McAllister, J. F., Almond, H. (1959) Gowerite, a new hydrous calcium borate from the Death Valley region, California. American Mineralogist, 44 (9-10) 911-919

ⓘ Montmorillonite

Formula: (Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O

Locality: Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

Erd, Richard C., McAllister, James F., Eberlein, G. Donald (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist, 64 (3-4) 369-375

ⓘ Nobleite

Formula: CaB₆O₉(OH)₂ · 3H₂O

Localities:

ⓘ Priceite

Formula: Ca₂B₅O₇(OH)₅ · H₂O

Localities:

Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Twenty Mule Team Road occurrences, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

ⓘ Sassolite

Formula: H₃BO₃

Localities:

ⓘ Sborgite

Formula: Na[B₅O₆(OH)₄] · 3H₂O

Localities:

South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Twenty Mule Team Road occurrences, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

ⓘ Thénardite

Formula: Na₂SO₄

Locality: Twenty Mule Team Road occurrences, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

McAllister, James Franklin (1961), Sborgite in the Furnace Creek area, California: USGS PP 424-B, Article 129: 300-301

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Thermonatrite

Formula: Na₂CO₃ · H₂O

Description: Occurs associated with Sborgite.

References:

McAllister, James Franklin (1961), Sborgite in the Furnace Creek area, California: USGS PP 424-B, Article 129: 300

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 365.

ⓘ Ulexite

Formula: NaCa[B₅O₆(OH)₆] · 5H₂O

Localities:

Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Mott prospect (Mott Colemanite prospect; Mott open cut), Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

ⓘ Wardsmithite

Formula: Ca₅Mg[B₄O₇]₆ · 30H₂O

Locality: South Meridian claim, Twenty Mule Team Canyon, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA

References:

Erd, Richard C., McAllister, James F., Eberlein, G. Donald (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist, 64 (3-4) 369-375

Gallery:

Ca₂B₁₄O₂₀(OH)₆ · 5H₂Oⓘ Ginorite

Ginorite

Mott prospect, Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Ginorite

Mott prospect, Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Ginorite

Mott prospect, Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Ca[B₅O₈(OH)][B(OH)₃] · 3H₂Oⓘ Gowerite

Gowerite

Unnamed Borate occurrence [29], Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Gowerite

Unnamed Borate occurrence [29], Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Gowerite

Unnamed Borate occurrence [29], Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

CaSO₄ · 2H₂Oⓘ Gypsum

Gypsum

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Gypsum

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Gypsum

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

CaB₃O₃(OH)₅ · H₂Oⓘ Meyerhofferite

Meyerhofferite, etc.

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Meyerhofferite, etc.

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Meyerhofferite, etc.

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Meyerhofferite, etc.

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Meyerhofferite, etc.

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Ca₂B₅O₇(OH)₅ · H₂Oⓘ Priceite

Priceite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Priceite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

Priceite

Twenty Mule Team Canyon, Furnace Creek Mining District, Inyo County, California, USA

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘ	Halite	3.AA.20	NaCl
Group 5 - Nitrates and Carbonates
ⓘ	Thermonatrite	5.CB.05	Na₂CO₃ · H₂O
Group 6 - Borates
ⓘ	Sassolite	6.AA.05	H₃BO₃
ⓘ	Meyerhofferite	6.CA.30	CaB₃O₃(OH)₅ · H₂O
ⓘ	Colemanite	6.CB.10	Ca[B₃O₄(OH)₃] · H₂O
ⓘ	Hydroboracite	6.CB.15	CaMg[B₃O₄(OH)₃]₂ · 3H₂O
ⓘ	Hungchaoite	6.DA.20	Mg(B₄O₇) · 9H₂O
ⓘ	Sborgite	6.EA.05	Na[B₅O₆(OH)₄] · 3H₂O
ⓘ	Ulexite	6.EA.25	NaCa[B₅O₆(OH)₆] · 5H₂O
ⓘ	Priceite	6.EB.25	Ca₂B₅O₇(OH)₅ · H₂O
ⓘ	Gowerite	6.EC.10	Ca[B₅O₈(OH)][B(OH)₃] · 3H₂O
ⓘ	Mcallisterite (TL)	6.FA.10	Mg₂[B₆O₇(OH)₆]₂ · 9H₂O
ⓘ	Aristarainite	6.FB.05	Na₂MgB₁₂O₂₀ · 8H₂O
ⓘ	Nobleite	6.FC.05	CaB₆O₉(OH)₂ · 3H₂O
ⓘ	Ginorite	6.FC.15	Ca₂B₁₄O₂₀(OH)₆ · 5H₂O
ⓘ	Wardsmithite	6.H0.25	Ca₅Mg[B₄O₇]₆ · 30H₂O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Thénardite	7.AD.25	Na₂SO₄
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Montmorillonite	9.EC.40	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
ⓘ	Analcime	9.GB.05	Na(AlSi₂O₆) · H₂O
Unclassified
ⓘ	'Clay minerals'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
H	ⓘ Aristarainite	Na₂MgB₁₂O₂₀ · 8H₂O
H	ⓘ Colemanite	Ca[B₃O₄(OH)₃] · H₂O
H	ⓘ Ginorite	Ca₂B₁₄O₂₀(OH)₆ · 5H₂O
H	ⓘ Gowerite	Ca[B₅O₈(OH)][B(OH)₃] · 3H₂O
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Hungchaoite	Mg(B₄O₇) · 9H₂O
H	ⓘ Hydroboracite	CaMg[B₃O₄(OH)₃]₂ · 3H₂O
H	ⓘ Mcallisterite	Mg₂[B₆O₇(OH)₆]₂ · 9H₂O
H	ⓘ Meyerhofferite	CaB₃O₃(OH)₅ · H₂O
H	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
H	ⓘ Priceite	Ca₂B₅O₇(OH)₅ · H₂O
H	ⓘ Sassolite	H₃BO₃
H	ⓘ Sborgite	Na[B₅O₆(OH)₄] · 3H₂O
H	ⓘ Thermonatrite	Na₂CO₃ · H₂O
H	ⓘ Ulexite	NaCa[B₅O₆(OH)₆] · 5H₂O
H	ⓘ Wardsmithite	Ca₅Mg[B₄O₇]₆ · 30H₂O
H	ⓘ Nobleite	CaB₆O₉(OH)₂ · 3H₂O
B	Boron
B	ⓘ Aristarainite	Na₂MgB₁₂O₂₀ · 8H₂O
B	ⓘ Colemanite	Ca[B₃O₄(OH)₃] · H₂O
B	ⓘ Ginorite	Ca₂B₁₄O₂₀(OH)₆ · 5H₂O
B	ⓘ Gowerite	Ca[B₅O₈(OH)][B(OH)₃] · 3H₂O
B	ⓘ Hungchaoite	Mg(B₄O₇) · 9H₂O
B	ⓘ Hydroboracite	CaMg[B₃O₄(OH)₃]₂ · 3H₂O
B	ⓘ Mcallisterite	Mg₂[B₆O₇(OH)₆]₂ · 9H₂O
B	ⓘ Meyerhofferite	CaB₃O₃(OH)₅ · H₂O
B	ⓘ Priceite	Ca₂B₅O₇(OH)₅ · H₂O
B	ⓘ Sassolite	H₃BO₃
B	ⓘ Sborgite	Na[B₅O₆(OH)₄] · 3H₂O
B	ⓘ Ulexite	NaCa[B₅O₆(OH)₆] · 5H₂O
B	ⓘ Wardsmithite	Ca₅Mg[B₄O₇]₆ · 30H₂O
B	ⓘ Nobleite	CaB₆O₉(OH)₂ · 3H₂O
C	Carbon
C	ⓘ Thermonatrite	Na₂CO₃ · H₂O
O	Oxygen
O	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
O	ⓘ Aristarainite	Na₂MgB₁₂O₂₀ · 8H₂O
O	ⓘ Colemanite	Ca[B₃O₄(OH)₃] · H₂O
O	ⓘ Ginorite	Ca₂B₁₄O₂₀(OH)₆ · 5H₂O
O	ⓘ Gowerite	Ca[B₅O₈(OH)][B(OH)₃] · 3H₂O
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hungchaoite	Mg(B₄O₇) · 9H₂O
O	ⓘ Hydroboracite	CaMg[B₃O₄(OH)₃]₂ · 3H₂O
O	ⓘ Mcallisterite	Mg₂[B₆O₇(OH)₆]₂ · 9H₂O
O	ⓘ Meyerhofferite	CaB₃O₃(OH)₅ · H₂O
O	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
O	ⓘ Priceite	Ca₂B₅O₇(OH)₅ · H₂O
O	ⓘ Sassolite	H₃BO₃
O	ⓘ Sborgite	Na[B₅O₆(OH)₄] · 3H₂O
O	ⓘ Thénardite	Na₂SO₄
O	ⓘ Thermonatrite	Na₂CO₃ · H₂O
O	ⓘ Ulexite	NaCa[B₅O₆(OH)₆] · 5H₂O
O	ⓘ Wardsmithite	Ca₅Mg[B₄O₇]₆ · 30H₂O
O	ⓘ Nobleite	CaB₆O₉(OH)₂ · 3H₂O
Na	Sodium
Na	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Na	ⓘ Aristarainite	Na₂MgB₁₂O₂₀ · 8H₂O
Na	ⓘ Halite	NaCl
Na	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Na	ⓘ Sborgite	Na[B₅O₆(OH)₄] · 3H₂O
Na	ⓘ Thénardite	Na₂SO₄
Na	ⓘ Thermonatrite	Na₂CO₃ · H₂O
Na	ⓘ Ulexite	NaCa[B₅O₆(OH)₆] · 5H₂O
Mg	Magnesium
Mg	ⓘ Aristarainite	Na₂MgB₁₂O₂₀ · 8H₂O
Mg	ⓘ Hungchaoite	Mg(B₄O₇) · 9H₂O
Mg	ⓘ Hydroboracite	CaMg[B₃O₄(OH)₃]₂ · 3H₂O
Mg	ⓘ Mcallisterite	Mg₂[B₆O₇(OH)₆]₂ · 9H₂O
Mg	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Mg	ⓘ Wardsmithite	Ca₅Mg[B₄O₇]₆ · 30H₂O
Al	Aluminium
Al	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Al	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Si	Silicon
Si	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Si	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
S	Sulfur
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Thénardite	Na₂SO₄
Cl	Chlorine
Cl	ⓘ Halite	NaCl
Ca	Calcium
Ca	ⓘ Colemanite	Ca[B₃O₄(OH)₃] · H₂O
Ca	ⓘ Ginorite	Ca₂B₁₄O₂₀(OH)₆ · 5H₂O
Ca	ⓘ Gowerite	Ca[B₅O₈(OH)][B(OH)₃] · 3H₂O
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Hydroboracite	CaMg[B₃O₄(OH)₃]₂ · 3H₂O
Ca	ⓘ Meyerhofferite	CaB₃O₃(OH)₅ · H₂O
Ca	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Ca	ⓘ Priceite	Ca₂B₅O₇(OH)₅ · H₂O
Ca	ⓘ Ulexite	NaCa[B₅O₆(OH)₆] · 5H₂O
Ca	ⓘ Wardsmithite	Ca₅Mg[B₄O₇]₆ · 30H₂O
Ca	ⓘ Nobleite	CaB₆O₉(OH)₂ · 3H₂O

Localities in this Region

USA

California
- Inyo County
  - Furnace Creek Mining District (Furnace Creek Borate Mining District)
    - Twenty Mule Team Canyon

USA

California
- Inyo County
  - Furnace Creek Mining District (Furnace Creek Borate Mining District)
    - Twenty Mule Team Canyon

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

USA

Death Valley National ParkNational Park
Mojave DesertDesert

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Christ, C. L., Clark, J. R., Evans Jnr, H. T. (1958) Studies of borate minerals. III. The crystal structure of colemanite, CaB3O4(OH)2.H2O. Acta Crystallographica, 11 (11) 761-770 doi:10.1107/s0365110x58002176

McAllister, James Franklin (1961), Sborgite in the Furnace Creek area, California: USGS PP 424-B, Article 129: 300

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 154, 327, 365.

Quick NavTop Mineral List Localities in Region Other Regions References

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 3, 2026 01:55:52 Page updated: July 24, 2026 05:13:42

Go to top of page