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Boron Pit, Baker mine, U.S. Borax Mine (Pacific West Coast Borax Mine; Pacific Coast Borax Co. Mine; Boron Mine; U.S. Borax and Chemical Corp. Mine; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA

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The Open Pit of the U.S. Borax Mine. A borate mine removing 10,000 tons/day during 1984. Owned by U.S. Borax & Chemical Corp.

Refs: (in part)
Mining Annual Review(1985):127
Tschernich, R. (1992): Zeolites of the World, 64, 311.




Group 2 - Sulphides and Sulfosalts
  		• Greigite2.DA.05
    Fe
    2+
     
    		Fe
    3+
    2
    		S
     
    4
  		• Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Group 5 - Nitrates and Carbonates
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Rhodochrosite5.AB.05
    MnCO
     
    3
    Group 6 - Borates
  		• Borax6.DA.10
    Na
     
    2
    		[B
     
    4
    		O
     
    7
    		] · 10H
     
    2
    		O
  		• Colemanite6.CB.10
    Ca[B
     
    3
    		O
     
    4
    		(OH)
     
    3
    		] · H
     
    2
    		O
  		• Hydroboracite6.CB.15
    CaMg[B
     
    3
    		O
     
    4
    		(OH)
     
    3
    		]
     
    2
    		 · 3H
     
    2
    		O
  		• Probertite6.EB.15
    NaCaB
     
    5
    		O
     
    7
    		(OH)
     
    4
    		·3H
     
    2
    		O
  		• Ulexite6.EA.25
    NaCa[B
     
    5
    		O
     
    6
    		(OH)
     
    6
    		] · 5H
     
    2
    		O
    Group 9 - Silicates
  		• Analcime9.GB.05
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
  		• Chabazite-Na9.GD.10
    (Na
     
    2
    		,K
     
    2
    		,Ca,Sr,Mg)
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		]
     
    2
    		 · 12H
     
    2
    		O
  		• Clinoptilolite-Na9.GE.05
    (Na,K,Ca)
     
    2-3
    		Al
     
    3
    		(Al,Si)
     
    2
    		Si
     
    13
    		O
     
    36
    		·12H
     
    2
    		O
  		• Gmelinite-Na9.GD.05
    (Na
     
    2
    		,Ca)[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 6H
     
    2
    		O
  		• Heulandite-Na9.GE.05
    (Na,Ca)
     
    2-3
    		Al
     
    3
    		(Al,Si)
     
    2
    		Si
     
    13
    		O
     
    36
    		·12H
     
    2
    		O
  		• Mazzite-Na (TL)9.GC.20
    Na
     
    4
    		[Al
     
    4
    		Si
     
    14
    		O
     
    36
    		]
     
    2
    		 · 30H
     
    2
    		O
  		• Mordenite9.GD.35
    (Na
     
    2
    		,Ca,K
     
    2
    		)Al
     
    2
    		Si
     
    10
    		O
     
    24
    		·7H
     
    2
    		O
  		• Phillipsite-Na9.GC.10
    (Na,K,Ca
     
    0.5
    		,Ba
     
    0.5
    		)
     
    4-7
    		[Al
     
    4-7
    		Si
     
    12-9
    		O
     
    32
    		] · 12H
     
    2
    		O
  		• Saponite
    var: Ferroan Saponite    		9.EC.45
    Ca
     
    0.25
    		(Mg,Fe)
     
    3
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
  		• Searlesite9.EF.15
    NaBSi
     
    2
    		O
     
    5
    		(OH)
     
    2
    Unclassified Minerals
  		• 'Gmelinite'-
  		• Herschelite-
  		• 'Heulandite'-
  		• 'Phillipsite'-
  		• 'Stilbite'-


    24 entries listed. 19 valid minerals.

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