Classification of Humberstonite |
| IMA status: | Approved 1967 |
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| Strunz 8th edition ID: | 6/D.16-40
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| Nickel-Strunz 10th (pending) edition ID: | 7.DG.10
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates) D : Sulfates (selenates, etc.) with additional anions, with H2O G : With large and medium-sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3 |
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| Dana 8th edition ID: | 32.2.2.1
32 : COMPOUND SULFATES 2 : Hydrated Compound Sulfates |
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| Hey's CIM Ref.: | 13.10
13 : Nitrates |
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| mindat.org URL: | http://www.mindat.org/min-1944.html Please feel free to link to this page. |
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Type Occurrence of Humberstonite |
| Type Locality: | Oficina Alemania, Santa Catalina, Antofagasta Province, Antofagasta Region, Chile |
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| Year of Discovery: | 1970 |
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Physical Properties of Humberstonite |
| Hardness (Mohs): | 2½ |
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Crystallography of Humberstonite |
| Crystal System: | Trigonal |
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| Cell Parameters: | a = 10.9Å, c = 24.39Å
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| Ratio: | a:c = 1 : 2.238 |
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| Unit Cell Volume: | V 2,509.55 ų (Calculated from Unit Cell) |
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Optical Data of Humberstonite |
| Type: | Uniaxial (-) |
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| RI values: | nω = 1.474 nε = 1.436 |
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| Maximum Birefringence: | δ = 0.038
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Moderate |
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Chemical Properties of Humberstonite |
| Formula: | |
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| Essential elements: | H, K, Mg, N, Na, O, S |
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| All elements listed in formula: | H, K, Mg, N, Na, O, S |
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Relationship of Humberstonite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | | 7.DG.05 | Darapskite | | | 7.DG.10 | Clinoungemachite | | | 7.DG.10 | Ungemachite | | | 7.DG.15 | Bentorite | | Ca | | (Cr | | ,Al) | | [(OH) | | |SO | | ] | | · 26H | | O |
| | 7.DG.15 | Charlesite | | Ca | | (Al,Si) | | [(OH,O) | | |B(OH) | | |(SO | | ) | | ] · 26H | | O |
| | 7.DG.15 | Ettringite | | | 7.DG.15 | Jouravskite | | Ca | | Mn | | [(OH) | | |(SO | | ,CO | | )] | | · 26H | | O |
| | 7.DG.15 | Sturmanite | | Ca | | (Fe | | ,Al,Mn | | ) | | [(OH) | | |B(OH) | | |(SO | | ) | | ] · 25H | | O |
| | 7.DG.15 | Thaumasite | | | 7.DG.15 | Carraraite | | | 7.DG.15 | Buryatite | | Ca | | (Si,Fe,Al)[SO | | ][B(OH) | | ](OH) | | O• | | H | | O |
| | 7.DG.15 | Korkinoite | | | 7.DG.20 | Rapidcreekite | | | 7.DG.25 | Tatarskite | | | 7.DG.25 | Chelyabinskite | | (Ca,Mg) | | [(SO | | ,CO | | ) | | |Si(OH) | | ] · 9H | | O (?) |
| | 7.DG.30 | Nakauriite | | | 7.DG.35 | Chessexite | | (Na,K) | | Ca | | (Mg,Zn) | | Al | | [(SO | | ) | | |(SiO | | ) | | ] · 40H | | O |
| | 7.DG.40 | Carlosruizite | | K | | (Na,K) | | Na | | Mg | | (SeO | | ) | | (IO | | ) | | ·12H | | O |
| | 7.DG.40 | Fuenzalidaite | |
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| Related Minerals - Hey's Index Grouping: | |
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Other Names for Humberstonite |
| Synonyms: | |
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| German names: | |
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| Russian names: | |
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| Spanish names: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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References for Humberstonite |
| Reference List: | American Mineralogist: 55: 1518-1533.
Canadian Mineralogist: 32: 381-385.
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Articles/Blogs about Humberstonite |
Internet Links for Humberstonite |
| Search Engines: |
Look for Humberstonite on Google
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| External Links: | Look for Humberstonite on WebmineralLook for Humberstonite on Athena MineralogyLook for Humberstonite on WikipediaLook for Humberstonite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Humberstonite in the Natural History Museum (London) online catalogueHumberstonite details from Handbook of Mineralogy (PDF) |
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| Mineral Dealers: | Search for Humberstonite at Thames Valley MineralsFabre Minerals - search for Humberstonite specimensSearch for Humberstonite on minvision.comSearch for - Humberstonite - on e-Rocks Mineral Sales & AuctionsLapis Mineral MagazinWendel Minerals - Auktion & ShopTop quality minerals from Kristalle of CaliforniaFine Minerals from Dan Weinrich MineralsBuy Minerals and Crystals from Crystalarium.comBuy fine minerals and gemstones from Pala InternationalFind Humberstonite on www.crystalclassics.co.ukRare and Unusual minerals at Mineralogical Research Company |
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| Jobs: | Mining & Geology Jobs |
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Localities for Humberstonite |