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La nambulita és un mineral de la classe dels silicats. Va ser anomenada en honor de Matsuo Nambu (1917-2009), conegut per les seves investigacions sobre minerals de manganès.
, La nambulite è un minerale: ha preso il no … La nambulite è un minerale: ha preso il nome dal mineralogista giapponese Matsuo Nambu . Appartiene ai silicati di manganese. È stato rinvenuto nelle montagne di Kitakami nel Nord-Est del Giappone, nelle montagne di Otavi nel Nord della Namibia e nel distretto di Urucum nello stato del Mato Grosso do Sul in Brasile ed a Tirodi nel Sausar, un territorio del Distretto di Chhindwara, stato del Madhya Pradesh, situato nell'India centrale.dhya Pradesh, situato nell'India centrale.
, 南部石（なんぶせき、 Nambulite）は、1972年に発表された日本産新鉱物で、旧地質調査所の鉱物学者などにより、岩手県の舟小沢鉱山で発見された。化学組成は(Li,Na)Mn4Si5O14(OH)で、三斜晶系。東北大学の鉱物学者であった南部松夫の業績をたたえて命名された。なおその後、アルカリ金属のサイトが、ナトリウムの卓越する組成の種も発見されており、ソーダ南部石（Natronambulite）と呼ばれる。
, Nambulita silikato motako minerala da eta rhodonita taldearen kidea da.
, Nambulite is a lithium bearing manganese s … Nambulite is a lithium bearing manganese silicate mineral with the chemical formula (Li,Na)Mn4Si5O14(OH). It is named after the mineralogist, Matsuo Nambu (born 1917) of Tohoko University, Japan, who is known for his research in manganese minerals. The mineral was first discovered in the Funakozawa Mine of northeastern Japan, a metasedimentary manganese ore. Nambulite is formed from the reaction between a hydrothermal solution and rhodonite, and commonly creates veins in the host rock. Other than a collector's gem, however, it has little economic value. It belongs to the triclinic-pinacoidal crystal system (or triclinic-normal), meaning that it has three axes of unequal length (a, b, c), all intersecting at oblique angles with each other (none of the angles are equal to 90°). It belongs to the crystal class 1, meaning that any point on the crystal that is rotated 360° and then completely inverted will meet with an equal (but opposite) point on the crystal (see centrosymmetry). Its space group is P 1. The three axes (a, b, c) have different indices of refraction, na=1.707, nb=1.710, nc=1.730. The index of refraction (RI) can be defined as n = cair/cmineral, where “n” is the index of refraction and “c” is the speed of light. The maximum birefringence is .023, the difference between the highest (nc=1.730) and lowest (na=1.707) indices of refraction within the mineral. In a medium with an index of refraction equaling 1.53, Nambulite has a calculated relief of 1.71–1.73, giving it a moderate to high relief. Relief is a measure of the difference between the index of refraction of the mineral and that of the medium (often Canada balsam or other epoxy with an RI of around 1.53–1.54). Nambulite is an anisotropic crystal, where the velocity of light that passes through the crystal varies depending on the crystallographic direction. In contrast, an isotropic crystal includes all isometric crystals, and the velocity of light is equal in all directions. The mineral exhibits slight pleochroism. Pleochroism is an optical property observed when the mineral is viewed under the microscope in plane polarized light, and when it the stage of the microscope is rotated the observed colors change. The color change is due to different wavelengths being absorbed in different directions, and the color of the mineral depends on the crystallographic orientation.pends on the crystallographic orientation.
, La nambulita es un mineral de la clase de … La nambulita es un mineral de la clase de los inosilicatos. Fue descubierta en 1972 en una mina de la localidad de en la prefectura de Iwate, isla de Honshū (Japón), siendo nombrada así en honor de Matsuo Nambu, mineralogista japonés. Un sinónimo poco usado es su clave: IMA1971-032.ónimo poco usado es su clave: IMA1971-032.
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6760
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| http://dbpedia.org/property/2v
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44
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| http://dbpedia.org/property/birefringence
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δ = 0.023
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| http://dbpedia.org/property/caption
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Gem quality nambulite from the Kombat Mine near Otavi, northern Namibia
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| http://dbpedia.org/property/category
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Inosilicate
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| http://dbpedia.org/property/class
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Pinacoidal
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{001} perfect, {100} distinct, {010} distinct
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Reddish orange brown
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Transparent to translucent
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r > v weak
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3.51
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Prismatic
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Nbl
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Vitreous – adamantine
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6.5
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612.13
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Nambulite
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Biaxial
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the Li analogue of natronambulite
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| http://dbpedia.org/property/pleochroism
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Weak
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| http://dbpedia.org/property/refractive
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nα = 1.707 nβ = 1.710 nγ = 1.730
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Pale yellow
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9
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P
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http://dbpedia.org/resource/Triclinic +
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Brittle
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infrequent
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c = 6.731 [Å]; α = 92.77°
, β = 95.08°, γ = 106.87°; Z = 2
, a = 7.621, b = 11.761
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| rdfs:comment |
La nambulita és un mineral de la classe dels silicats. Va ser anomenada en honor de Matsuo Nambu (1917-2009), conegut per les seves investigacions sobre minerals de manganès.
, La nambulite è un minerale: ha preso il no … La nambulite è un minerale: ha preso il nome dal mineralogista giapponese Matsuo Nambu . Appartiene ai silicati di manganese. È stato rinvenuto nelle montagne di Kitakami nel Nord-Est del Giappone, nelle montagne di Otavi nel Nord della Namibia e nel distretto di Urucum nello stato del Mato Grosso do Sul in Brasile ed a Tirodi nel Sausar, un territorio del Distretto di Chhindwara, stato del Madhya Pradesh, situato nell'India centrale.dhya Pradesh, situato nell'India centrale.
, La nambulita es un mineral de la clase de … La nambulita es un mineral de la clase de los inosilicatos. Fue descubierta en 1972 en una mina de la localidad de en la prefectura de Iwate, isla de Honshū (Japón), siendo nombrada así en honor de Matsuo Nambu, mineralogista japonés. Un sinónimo poco usado es su clave: IMA1971-032.ónimo poco usado es su clave: IMA1971-032.
, Nambulite is a lithium bearing manganese s … Nambulite is a lithium bearing manganese silicate mineral with the chemical formula (Li,Na)Mn4Si5O14(OH). It is named after the mineralogist, Matsuo Nambu (born 1917) of Tohoko University, Japan, who is known for his research in manganese minerals. The mineral was first discovered in the Funakozawa Mine of northeastern Japan, a metasedimentary manganese ore. Nambulite is formed from the reaction between a hydrothermal solution and rhodonite, and commonly creates veins in the host rock. Other than a collector's gem, however, it has little economic value.em, however, it has little economic value.
, Nambulita silikato motako minerala da eta rhodonita taldearen kidea da.
, 南部石（なんぶせき、 Nambulite）は、1972年に発表された日本産新鉱物で、旧地質調査所の鉱物学者などにより、岩手県の舟小沢鉱山で発見された。化学組成は(Li,Na)Mn4Si5O14(OH)で、三斜晶系。東北大学の鉱物学者であった南部松夫の業績をたたえて命名された。なおその後、アルカリ金属のサイトが、ナトリウムの卓越する組成の種も発見されており、ソーダ南部石（Natronambulite）と呼ばれる。
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| rdfs:label |
南部石
, Nambulita
, Nambulite
|
