Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USAi
| Regional Level Types | |
|---|---|
| Rio Tinto Borax Mine | Mine |
| Kramer Borate deposit | Deposit |
| Boron | Town |
| Kern County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
35° 2' 39'' North , 117° 41' 39'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Boron | 2,253 (2011) | 6.4km |
| North Edwards | 1,058 (2011) | 13.0km |
| Edwards Air Force Base | 2,063 (2013) | 26.2km |
| California City | 13,277 (2017) | 28.0km |
| Johannesburg | 172 (2011) | 36.9km |
Mindat Locality ID:
23409
Long-form identifier:
mindat:1:2:23409:9
GUID (UUID V4):
c52ed4da-7506-477b-8dd2-62fc4199811f
Other/historical names associated with this locality:
U.S. Borax Mine; Pacific West Coast Borax; Kramer Mine; Baker Mine; Pacific Coast Borax Co.; Boron Mine; Boron open pit; U.S. Borax and Chemical Corporation Mine;
A B (borates)-As-Sb-clay occurrence/mine located in secs. 19, 23 & 24, T11N, R8W, MDM, approximately 7 miles NW of Kramer and 4 miles NW of Boron.
Owned by the Rio Tinto company.
Formerly owned-operated by the U.S. Borax (subsidiary Of Rtz Borax Ltd. Of Rtz Corporation PLC (London, UK), Home office = Los Angeles, California (until 1992).
The primary mineralization is borax, precipitated in a permanent shallow lake, fed from thermal (volcanic) springs rich in sodium & boron. Kernite was formed later upon deep (+1500 feet) burial and temperatures above 53 degrees C (Christ and Garrels, 1959). The sodium borates together with claystone are hosted as a core facies within the Middle Miocene (16 mybp) Kramer beds (Barnard & Kistler, 1967) and are completely enveloped by ulexite-bearing shales (Gale, 1946). Stratigraphic and structural studies indicate the Kramer borates were deposited in a small structural, nonmarine basin, elongated in an east-west direction and limited on the south by the Western Borax fault.
[Joe Siefke 2010]
Additional names which apply to this locality: Osborne shaft; Discovery shaft; West Baker Mine.
Workings at the site included underground workings that were subsequently subhumed by a large open pit operation. The workings have an overall depth of 182.88 meters, an overall length of 2,000 meters and an overall width of 1,600 meters. The underground workings were employed from 1927 to 1957 when open pit mining became more profitable. The above-listed dimensions are for the open pit.
U.S. Borax operates the open pit, refinery and boric acid plant at the site. The waste to ore ratio is about 7:1 with almost 100% ore recovery. The waste to ore ratio is expected to increase as the pit expands to the SSW. On average, one train of 30 to 35 one hundred-ton cars serves the mine. The mine operations are energy intensive.
Approximately 50% of the kernite is stacked in the pit, wetted with water, and left to hydrate to borax (usually takes a few weeks). Processing is described by O'Driscoll (1990).
In 1989, production averaged 3,000 to 3,500 short tons per day (O'Driscoll, 1990).
Reserve-Resource data are found in Kistler, R.B., and Smith, W.C. (1975); Roskill Information Services Ltd. (1993).
Reserves and resources data: Type: in-situ (estimate year: 1975): total resources: 36,281,000 metric tons of ore at 25 weight percent B2O3. Estimate year: 1992: total resources: 127,000,000,000 metric tons at 27.7% weight percent B2O3. At 1990 mining rates, reserves were held to be adequate for 30 to 40 years (O'Driscoll, 1990).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities35 valid minerals. 4 (TL) - type locality of valid minerals.
Detailed Mineral List:
| β Analcime Formula: Na(AlSi2O6) · H2O Localities: |
| β Borax Formula: Na2(B4O5)(OH)4 · 8H2O Localities: Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax open pit, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Jenifer Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA |
| β Calcite Formula: CaCO3 Localities: |
| β Chabazite-Na Formula: (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O Localities: References: |
| β Clinoptilolite-Na Formula: Na6(Si30Al6)O72 · 20H2O |
| β 'Clinoptilolite Subgroup' Formula: M3-6(Si30Al6)O72 · 20H2O Localities: |
| β Colemanite Formula: Ca[B3O4(OH)3] · H2O Localities: |
| βͺ Gaidonnayite Formula: Na2Zr(Si3O9) · 2H2O Habit: 1mm rosettes of thin-bladed monoclinic crystals Colour: clear Description: Found in saponite covered vesicles in Saddleback Mountain basalt samples originated from the pit decades ago. Associated with octahedral-like dipyramidal calcite and gmelinite-Na. |
| β Gerstleyite (TL) Formula: Na2(Sb,As)8S13 · 2H2O Localities: Type Locality: Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA References: |
| β Gmelinite-Na Formula: Na4(Si8Al4)O24 · 11H2O |
| β 'Gmelinite Subgroup' Localities: |
| β Greigite Formula: Fe2+Fe3+2S4 Localities: |
| β Heulandite-Na Formula: (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| β 'Heulandite Subgroup' Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O Localities: |
| β Hydroboracite Formula: CaMg[B3O4(OH)3]2 · 3H2O |
| β Inderite Formula: MgB3O3(OH)5 · 5H2O Localities: Rio Tinto Borax open pit, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Jenifer Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Habit: prismatic crystals with square cross sections up to 30cm. Rarely terminated Description: Occurs abundantly with kurnakovite in the hanging wall of the main Na-borate4 ore body, in a thin, discontinuous zone 1 to 2 feet (0.3 to 0.6 meters) above the ore.
Mostly found during the early days of the open pit where a fault zone in the western part of the deposit was uncovered. The Inderite crystals were found growing in the distinctive blue/green/tan mud of the deposit. |
| β Inyoite Formula: Ca(H4B3O7)(OH) · 4H2O Description: Occurs as unaltered crystals to 3.75 cm on a side; as intergrown masses; as small, rough crystals found in clay adjacent to the deposit. |
| β Kernite Formula: Na2[B4O6(OH)2] · 3H2O Localities: |
| β Kurnakovite Formula: MgB3O3(OH)5 · 5H2O Localities: Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax open pit, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Jenifer Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA |
| βͺ Mazzite-Na (TL) Formula: Na8[Al4Si14O36]2 · 30H2O Type Locality: Habit: Acicular Colour: White |
| β Meyerhofferite Formula: CaB3O3(OH)5 · H2O Colour: White Description: Occurs as small white euhedral crystals disseminated in a green claystone near the base of the upper ulexite layers. |
| β Mordenite Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| β Orpiment Formula: As2S3 |
| β Pararealgar Formula: As4S4 |
| β Phillipsite-Na Formula: (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| β 'Phillipsite Subgroup' Localities: |
| β Probertite (TL) Formula: NaCa[B5O7(OH)4] · 3H2O Localities: Type Locality: Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA References: |
| β Pyrrhotite Formula: Fe1-xS Localities: |
| β Realgar Formula: As4S4 Localities: Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Jenifer Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax open pit, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA |
| β Rhodochrosite Formula: MnCO3 Localities: |
| β Saponite Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O Localities: |
| β Saponite var. Iron-bearing Saponite Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O Localities: Colour: green, brownish, black |
| β Sassolite Formula: H3BO3 Localities: Description: Occurs as efflorescences at the exposed contact of lower barren facies (shale) and Saddleback Basalt. References: |
| β Searlesite Formula: Na(H2BSi2O7) Localities: |
| β Smythite Formula: (Fe,Ni)3+xS4 (x=0-0.3) Description: Present as inclusions in colourless analcite crystals in vugs in the Saddleback basalt. Smythite crystals that are not included in another mineral and are therefore exposed to the air are quickly altered to iron oxides and no longer exist as smythite. |
| β Stibnite Formula: Sb2S3 |
| β 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O |
| β Tincalconite Formula: Na2(B4O7) · 5H2O Localities: Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Jenifer Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA Rio Tinto Borax open pit, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA |
| β Tunellite (TL) Formula: SrB6O9(OH)2 · 3H2O Localities: References: |
| β Ulexite Formula: NaCa[B5O6(OH)6] · 5H2O |
| β Veatchite Formula: Sr2B11O16(OH)5 · H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Smythite | 2.CC.10 | (Fe,Ni)3+xS4 (x=0-0.3) |
| β | Pyrrhotite | 2.CC.10 | Fe1-xS |
| β | Greigite | 2.DA.05 | Fe2+Fe3+2S4 |
| β | Stibnite | 2.DB.05 | Sb2S3 |
| β | Realgar | 2.FA.15a | As4S4 |
| β | Pararealgar | 2.FA.15b | As4S4 |
| β | Orpiment | 2.FA.30 | As2S3 |
| β | Gerstleyite (TL) | 2.HE.05 | Na2(Sb,As)8S13 Β· 2H2O |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| β | Rhodochrosite | 5.AB.05 | MnCO3 |
| Group 6 - Borates | |||
| β | Sassolite | 6.AA.05 | H3BO3 |
| β | Inderite | 6.CA.15 | MgB3O3(OH)5 Β· 5H2O |
| β | Kurnakovite | 6.CA.20 | MgB3O3(OH)5 Β· 5H2O |
| β | Meyerhofferite | 6.CA.30 | CaB3O3(OH)5 Β· H2O |
| β | Inyoite | 6.CA.35 | Ca(H4B3O7)(OH) Β· 4H2O |
| β | Colemanite | 6.CB.10 | Ca[B3O4(OH)3] Β· H2O |
| β | Hydroboracite | 6.CB.15 | CaMg[B3O4(OH)3]2 Β· 3H2O |
| β | Borax | 6.DA.10 | Na2(B4O5)(OH)4 Β· 8H2O |
| β | Tincalconite | 6.DA.15 | Na2(B4O7) Β· 5H2O |
| β | Kernite | 6.DB.05 | Na2[B4O6(OH)2] Β· 3H2O |
| β | Ulexite | 6.EA.25 | NaCa[B5O6(OH)6] Β· 5H2O |
| β | Probertite (TL) | 6.EB.15 | NaCa[B5O7(OH)4] Β· 3H2O |
| β | Veatchite | 6.EC.15 | Sr2B11O16(OH)5 Β· H2O |
| β | Tunellite (TL) | 6.FC.05 | SrB6O9(OH)2 Β· 3H2O |
| Group 9 - Silicates | |||
| β | Gaidonnayite | 9.DM.15 | Na2Zr(Si3O9) Β· 2H2O |
| β | Saponite | 9.EC.45 | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 Β· nH2O |
| β | var. Iron-bearing Saponite | 9.EC.45 | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 Β· nH2O |
| β | Searlesite | 9.EF.15 | Na(H2BSi2O7) |
| β | Analcime | 9.GB.05 | Na(AlSi2O6) Β· H2O |
| β | Phillipsite-Na | 9.GC.10 | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] Β· 12H2O |
| β | Mazzite-Na (TL) | 9.GC.20 | Na8[Al4Si14O36]2 Β· 30H2O |
| β | Gmelinite-Na | 9.GD.05 | Na4(Si8Al4)O24 Β· 11H2O |
| β | Chabazite-Na | 9.GD.10 | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 Β· 12H2O |
| β | Mordenite | 9.GD.35 | (Na2,Ca,K2)4(Al8Si40)O96 Β· 28H2O |
| β | Clinoptilolite-Na | 9.GE.05 | Na6(Si30Al6)O72 Β· 20H2O |
| β | Heulandite-Na | 9.GE.05 | (Na,Ca,K)6(Si,Al)36O72 Β· 22H2O |
| Unclassified | |||
| β | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] Β· nH2O |
| β | 'Phillipsite Subgroup' | - | |
| β | 'Heulandite Subgroup' | - | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] Β· nH2O |
| β | 'Gmelinite Subgroup' | - | |
| β | 'Clinoptilolite Subgroup' | - | M3-6(Si30Al6)O72 Β· 20H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Analcime | Na(AlSi2O6) · H2O |
| H | β Borax | Na2(B4O5)(OH)4 · 8H2O |
| H | β Clinoptilolite Subgroup | M3-6(Si30Al6)O72 · 20H2O |
| H | β Colemanite | Ca[B3O4(OH)3] · H2O |
| H | β Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
| H | β Gerstleyite | Na2(Sb,As)8S13 · 2H2O |
| H | β Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| H | β Hydroboracite | CaMg[B3O4(OH)3]2 · 3H2O |
| H | β Inderite | MgB3O3(OH)5 · 5H2O |
| H | β Inyoite | Ca(H4B3O7)(OH) · 4H2O |
| H | β Kernite | Na2[B4O6(OH)2] · 3H2O |
| H | β Kurnakovite | MgB3O3(OH)5 · 5H2O |
| H | β Meyerhofferite | CaB3O3(OH)5 · H2O |
| H | β Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| H | β Probertite | NaCa[B5O7(OH)4] · 3H2O |
| H | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| H | β Sassolite | H3BO3 |
| H | β Searlesite | Na(H2BSi2O7) |
| H | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| H | β Tincalconite | Na2(B4O7) · 5H2O |
| H | β Tunellite | SrB6O9(OH)2 · 3H2O |
| H | β Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| H | β Veatchite | Sr2B11O16(OH)5 · H2O |
| H | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| H | β Clinoptilolite-Na | Na6(Si30Al6)O72 · 20H2O |
| H | β Gmelinite-Na | Na4(Si8Al4)O24 · 11H2O |
| H | β Saponite var. Iron-bearing Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| H | β Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| H | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| H | β Mazzite-Na | Na8[Al4Si14O36]2 · 30H2O |
| B | Boron | |
| B | β Borax | Na2(B4O5)(OH)4 · 8H2O |
| B | β Colemanite | Ca[B3O4(OH)3] · H2O |
| B | β Hydroboracite | CaMg[B3O4(OH)3]2 · 3H2O |
| B | β Inderite | MgB3O3(OH)5 · 5H2O |
| B | β Inyoite | Ca(H4B3O7)(OH) · 4H2O |
| B | β Kernite | Na2[B4O6(OH)2] · 3H2O |
| B | β Kurnakovite | MgB3O3(OH)5 · 5H2O |
| B | β Meyerhofferite | CaB3O3(OH)5 · H2O |
| B | β Probertite | NaCa[B5O7(OH)4] · 3H2O |
| B | β Sassolite | H3BO3 |
| B | β Searlesite | Na(H2BSi2O7) |
| B | β Tincalconite | Na2(B4O7) · 5H2O |
| B | β Tunellite | SrB6O9(OH)2 · 3H2O |
| B | β Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| B | β Veatchite | Sr2B11O16(OH)5 · H2O |
| C | Carbon | |
| C | β Calcite | CaCO3 |
| C | β Rhodochrosite | MnCO3 |
| O | Oxygen | |
| O | β Analcime | Na(AlSi2O6) · H2O |
| O | β Borax | Na2(B4O5)(OH)4 · 8H2O |
| O | β Calcite | CaCO3 |
| O | β Clinoptilolite Subgroup | M3-6(Si30Al6)O72 · 20H2O |
| O | β Colemanite | Ca[B3O4(OH)3] · H2O |
| O | β Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
| O | β Gerstleyite | Na2(Sb,As)8S13 · 2H2O |
| O | β Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| O | β Hydroboracite | CaMg[B3O4(OH)3]2 · 3H2O |
| O | β Inderite | MgB3O3(OH)5 · 5H2O |
| O | β Inyoite | Ca(H4B3O7)(OH) · 4H2O |
| O | β Kernite | Na2[B4O6(OH)2] · 3H2O |
| O | β Kurnakovite | MgB3O3(OH)5 · 5H2O |
| O | β Meyerhofferite | CaB3O3(OH)5 · H2O |
| O | β Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| O | β Probertite | NaCa[B5O7(OH)4] · 3H2O |
| O | β Rhodochrosite | MnCO3 |
| O | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| O | β Sassolite | H3BO3 |
| O | β Searlesite | Na(H2BSi2O7) |
| O | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| O | β Tincalconite | Na2(B4O7) · 5H2O |
| O | β Tunellite | SrB6O9(OH)2 · 3H2O |
| O | β Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| O | β Veatchite | Sr2B11O16(OH)5 · H2O |
| O | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| O | β Clinoptilolite-Na | Na6(Si30Al6)O72 · 20H2O |
| O | β Gmelinite-Na | Na4(Si8Al4)O24 · 11H2O |
| O | β Saponite var. Iron-bearing Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| O | β Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| O | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| O | β Mazzite-Na | Na8[Al4Si14O36]2 · 30H2O |
| Na | Sodium | |
| Na | β Analcime | Na(AlSi2O6) · H2O |
| Na | β Borax | Na2(B4O5)(OH)4 · 8H2O |
| Na | β Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
| Na | β Gerstleyite | Na2(Sb,As)8S13 · 2H2O |
| Na | β Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Na | β Kernite | Na2[B4O6(OH)2] · 3H2O |
| Na | β Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Na | β Probertite | NaCa[B5O7(OH)4] · 3H2O |
| Na | β Searlesite | Na(H2BSi2O7) |
| Na | β Tincalconite | Na2(B4O7) · 5H2O |
| Na | β Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| Na | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| Na | β Clinoptilolite-Na | Na6(Si30Al6)O72 · 20H2O |
| Na | β Gmelinite-Na | Na4(Si8Al4)O24 · 11H2O |
| Na | β Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| Na | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| Na | β Mazzite-Na | Na8[Al4Si14O36]2 · 30H2O |
| Mg | Magnesium | |
| Mg | β Hydroboracite | CaMg[B3O4(OH)3]2 · 3H2O |
| Mg | β Inderite | MgB3O3(OH)5 · 5H2O |
| Mg | β Kurnakovite | MgB3O3(OH)5 · 5H2O |
| Mg | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Mg | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| Mg | β Saponite var. Iron-bearing Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Al | Aluminium | |
| Al | β Analcime | Na(AlSi2O6) · H2O |
| Al | β Clinoptilolite Subgroup | M3-6(Si30Al6)O72 · 20H2O |
| Al | β Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Al | β Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Al | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Al | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Al | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| Al | β Clinoptilolite-Na | Na6(Si30Al6)O72 · 20H2O |
| Al | β Gmelinite-Na | Na4(Si8Al4)O24 · 11H2O |
| Al | β Saponite var. Iron-bearing Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Al | β Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| Al | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| Al | β Mazzite-Na | Na8[Al4Si14O36]2 · 30H2O |
| Si | Silicon | |
| Si | β Analcime | Na(AlSi2O6) · H2O |
| Si | β Clinoptilolite Subgroup | M3-6(Si30Al6)O72 · 20H2O |
| Si | β Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
| Si | β Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Si | β Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Si | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Si | β Searlesite | Na(H2BSi2O7) |
| Si | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| Si | β Clinoptilolite-Na | Na6(Si30Al6)O72 · 20H2O |
| Si | β Gmelinite-Na | Na4(Si8Al4)O24 · 11H2O |
| Si | β Saponite var. Iron-bearing Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Si | β Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| Si | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| Si | β Mazzite-Na | Na8[Al4Si14O36]2 · 30H2O |
| S | Sulfur | |
| S | β Gerstleyite | Na2(Sb,As)8S13 · 2H2O |
| S | β Greigite | Fe2+Fe23+S4 |
| S | β Orpiment | As2S3 |
| S | β Pararealgar | As4S4 |
| S | β Pyrrhotite | Fe1-xS |
| S | β Realgar | As4S4 |
| S | β Smythite | (Fe,Ni)3+xS4 (x=0-0.3) |
| S | β Stibnite | Sb2S3 |
| K | Potassium | |
| K | β Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| K | β Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| K | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| K | β Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| K | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| Ca | Calcium | |
| Ca | β Calcite | CaCO3 |
| Ca | β Colemanite | Ca[B3O4(OH)3] · H2O |
| Ca | β Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Ca | β Hydroboracite | CaMg[B3O4(OH)3]2 · 3H2O |
| Ca | β Inyoite | Ca(H4B3O7)(OH) · 4H2O |
| Ca | β Meyerhofferite | CaB3O3(OH)5 · H2O |
| Ca | β Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Ca | β Probertite | NaCa[B5O7(OH)4] · 3H2O |
| Ca | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Ca | β Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| Ca | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| Ca | β Saponite var. Iron-bearing Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Ca | β Heulandite-Na | (Na,Ca,K)6(Si,Al)36O72 · 22H2O |
| Ca | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
| Mn | Manganese | |
| Mn | β Rhodochrosite | MnCO3 |
| Fe | Iron | |
| Fe | β Greigite | Fe2+Fe23+S4 |
| Fe | β Pyrrhotite | Fe1-xS |
| Fe | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Fe | β Smythite | (Fe,Ni)3+xS4 (x=0-0.3) |
| Fe | β Saponite var. Iron-bearing Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Ni | Nickel | |
| Ni | β Smythite | (Fe,Ni)3+xS4 (x=0-0.3) |
| As | Arsenic | |
| As | β Gerstleyite | Na2(Sb,As)8S13 · 2H2O |
| As | β Orpiment | As2S3 |
| As | β Pararealgar | As4S4 |
| As | β Realgar | As4S4 |
| Sr | Strontium | |
| Sr | β Tunellite | SrB6O9(OH)2 · 3H2O |
| Sr | β Veatchite | Sr2B11O16(OH)5 · H2O |
| Sr | β Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
| Zr | Zirconium | |
| Zr | β Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
| Sb | Antimony | |
| Sb | β Gerstleyite | Na2(Sb,As)8S13 · 2H2O |
| Sb | β Stibnite | Sb2S3 |
| Ba | Barium | |
| Ba | β Phillipsite-Na | (Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] · 12H2O |
Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Rio_Tinto_Borax_Mine |
|---|---|
| Wikidata ID: | Q7335340 |
| Link to USGS MRDS: | 10080426 |
Localities in this Region
- California
- Kern County
- Boron
- Kramer Borate deposit
- Rio Tinto Borax Mine
- Kramer Borate deposit
- Boron
- Kern County
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
USA
- California
- Kern County
- Kramer Borate Mining DistrictMining District
- Kern County
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
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060291052
Rio Tinto Borax open pit, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA