Forsterite Mg2SiO4

Tenga matombo echisikigo muchitoro chedu

mineral forsterite

Ndiyo magnesium-yakapfuma yekupedzisira chikamu che olivine solid solution series. Iyo isomorphic kune iron-rich terminal fayalite yakanatswa mune orthorhombic fomu.

Isu tagara tichitenda kuti forsterite inosanganiswa negneous uye metamorphic matombo. Takazviwana mumameteorites zvakare. Muna 2005, yakawanikwa zvakare muguruva remu cometary rakadzoserwa neStardust probe. Muna 2011, yakaonekwa semakristasi madiki mumakore ane guruva gasi akatenderedza nyeredzi iri kubuda.

Kune mapolymorphs maviri edombo iri. Wadsleyite, rhombic, senge ringwoodite, isometric. Ose ari maviri anouya zvakanyanya kubva kumeteorites.

A pure crystal is magnesium, pamwe neokisijeni nesilicon. Kemikari formula Mg2SiO4. Forsterite, fayalite Fe2SiO4 uye tephroite Mn2SiO4 ndiyo nhengo dzekupedzisira dze olivine solution series. Zvimwe zvinhu zvakaita seNi uye Ca zvinotsiva Fe uye Mg mumaorivhi. Asi chete muzvikamu zviduku muzvinhu zvakasikwa.

Mamwe mamineral akadai se monticellite CaMgSiO4. Imwe mineral isina kujairika yakapfuma mu calcium ine chimiro che olivine. Asi pane hushoma hwemhinduro yakasimba pakati pe olivine nemamwe mamineral aya. Tinogona kuwana monticellite inosangana neyakashandurwa dolomites.

Forsterite Kuumbwa: Mg2SiO4

Mushonga wekemikari unonyanya kuve anion SiO44- uye cation Mg2+ muchikamu chemolar che1: 2. Silicon ndiyo yepakati atomu yeSiO44- anion. Imwe covalent bond inobatanidza atomu imwe neimwe yeokisijeni kune silicon. Maatomu mana eokisijeni akachajiswa zvisina kunaka.

Nekuda kweiyo covalent chisungo nesilicon. Naizvozvo, maatomu eokisijeni anofanira kunge ari kure kure. Kuderedza simba rekuramba pakati pavo. Iyo yakanakisa geometry yekudzikisa repulsion ndiyo tetrahedral chimiro.

Izvi zvakatanga kutsanangurwa muna 1824 kune imwe nyaya pagomo. Somma, Vesuvius, Italy. Zita rayo rinobva kuChirungu naturalist uye mineral collector Adolarius Jacob Forster.

Iro dombo parizvino riri kuferefetwa sechingangove biomaterial yemaimplants. Nekuda kweakanakisa ma mechanical properties.

Gemological properties

• Category: mesosilicates
• Fomula: magnesium silicate (Mg2SiO4)
• Diamond crystal system
• Crystal class: dipyramidal
• Ruvara: isina ruvara, girini, yero, yero-girinhi, chena;
• Chimiro chemakristasi: dipyramidal prisms, kazhinji tabular, kazhinji granular kana compact, yakakura.
• Kudyidzana kaviri: {100}, {011} uye {012}
• Neckline: yakakwana {010} isina kukwana ku{100}
• Kutsemuka: conchoidal
• Mohs kuoma: 7
• Luster: vitreous
• Mutsetse: muchena
• Transparency: jekerere kusvika pakupenya
• Chaiyo giravhiti: 3.21 - 3.33
• Optical zvivakwa: biaxial (+)
• Refractive index: nα = 1.636 - 1.730 nβ = 1.650 - 1.739 nγ = 1.669 - 1.772
• Birefringence: δ = 0.033–0.042
• Ngona 2B: 82°
• Kunyungudika: 1890°C

Forsterite zvinoreva uye mishonga yemishonga, metaphysical mabhenefiti

Chikamu chinotevera ndechenhema-sainzi uye chakavakirwa pazvitendero zvetsika.

Iyo crystal ine zvinoreva uye kuporesa zvinhu zvemaronda ekare. Ibwe rine simba rekuporesa simba. Izvi zvichagumisa marwadzo anoramba aripo kubva kare. Zvinokupawo simba rekutarisira ramangwana.

FAQ

Ndezvipi zvikumbiro zveforsterite?

Sematombo anokosha ekushandiswa kwemaindasitiri sejecha refractory uye abrasives, magnesium ore uye semamineral specimens. Iyo kristaro yakatumidzwa zita remuGerman mugadziri wezvisikwa Johann Forster. Icho chimwe chezvicherwa zviviri zvinongonzi olivine. Chechipiri mineral is fayalite.

Ndeupi musiyano kubva kune fayalite?

Fayalite idombo rakapfuma-simbi rine fomula yakachena Fe2SiO4. Forsterite isimbi ine magnesium-yakapfuma ine fomula yakachena yeMg2SiO4. Zvikasadaro, iwo akaoma kusiyanisa, uye angangoita ese masampula emaminerari maviri aya ane ese iron uye magnesium.

Forsterite inocherwa kupi?

Iro dombo rinowanzo kuwanikwa mumadunites, gabbras, diabases, basalts uye trachytes. Zvishoma zvefayalite zviripo mumatombo akawanda anoputika apo sodium yakawanda kupfuura potasium. Aya mamineral anowanikwawo mune dolomitic limestones, marbles, uye iron-rich metamorphoses.

Maitiro ekuverenga iyo olivine yemukati muforsterite?

Plot ye olivine-forsterite yemukati (Fo = 100 * Mg / (yakazara Mg + Fe), zviyero zve cations) zvichienderana nehuwandu hweCa cations (mineral formula inoenderana nemaatomu mana eokisijeni).

Kutengeswa kwematombo echisikigo muchitoro chedu chematombo