Phyllosilicate mineral
Falcondoite Category Phyllosilicate Formula(repeating unit) (Ni,Mg)4 Si6 O15 (OH)2 ·6H2 O IMA symbol Fcd[1] Strunz classification 9.EE.25 Crystal system Orthorhombic Crystal class Dipyramidal (2/m 2/m 2/m) (same H-M symbol) Space group Pncn Unit cell a = 13.5 Å, b = 26.9 Å c = 5.24 Å; α=90° = β=90° = γ=90°; Z = 4 Color Whitish-green Crystal habit Fibrous and microscopic crystals Cleavage Distinct Fracture Friable Tenacity Brittle Mohs scale hardness 2 - 3 Luster Resinous Streak White Diaphaneity Translucent Specific gravity 1.9 Density 1.9 g/cm3 Optical properties Biaxial Birefringence δ=0.01 - 0.02 Dispersion r < v strong Ultraviolet fluorescence Non-fluorescent References [2] [3]
Falcondoite , a member of the sepiolite group, was first discovered in the Dominican Republic, near the town of Bonao. The mineral was found in a deposit mined by Falcon bridge Do minica, and so was named "falcondo ite" after the company. Falcondoite is frequently associated with sepiolite, garnierite, talc, and serpentine, and is commonly nickel-bearing. While the chemical formula for falcondoite can vary, the mineral must contain more nickel than magnesium to be considered its own species.[4] The ideal chemical formula for falcondoite is (Ni,Mg)4 Si6 O15 (OH)2 ·6H2 O.[2]
^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine . 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43 . S2CID 235729616.
^ a b "Falcondoite". www.mindat.org . Retrieved 2021-12-06 .
^ Cite error: The named reference :3
was invoked but never defined (see the help page).
^ Springer, G (1976). "Falcondoite, Nickle Analogue of Sepiolite". Canadian Mineralogist . 14 : 407–409.
Last Update: 2023-11-21T20:10:00Z
Falcondoite , a member of the sepiolite group, was first discovered in the Dominican Republic, near the town of Bonao. The mineral was found in a deposit...
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Last Update: 2024-01-20T06:04:10Z
solution between Ni-sepiolite and falcondoite , with samples analyzed showing between 3 and 77 percent falcondoite composition. According to X-ray and...
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Last Update: 2024-01-09T17:55:27Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-04-11T21:16:29Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-09T21:00:34Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-04-15T12:50:23Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-04-14T10:00:55Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-18T20:44:52Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-04-15T12:52:45Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-04-18T09:28:31Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-24T20:13:07Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-03-19T19:11:01Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-02-15T11:06:26Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-02-22T21:24:26Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-18T21:33:24Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-24T20:18:23Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-03-31T19:36:28Z
Fai Ferroefremovite Fefr Fluorapophyllite-(NH4) Fapo-NH4 Froodite Fro Falcondoite Fcd Ferroericssonite Fers Fluorarrojadite-(BaFe) Fajd-BaFe Fuenzalidaite...
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Last Update: 2024-04-10T01:12:46Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-24T20:15:01Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-04-14T07:27:34Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-24T03:18:31Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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Last Update: 2024-01-24T03:12:39Z
Sudoite Allophanes Allophane Chrysocolla Imogolite Neotocite Sepiolites Falcondoite Ferrisepiolite Sepiolite Pyrosmalites Friedelite Mcgillite Nelenite Pyrosmalite...
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