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Magnesium end-member of olivine, a nesosilicate mineral
Forsterite (Mg2SiO4; commonly abbreviated as Fo; also known as white olivine) is the magnesium-rich end-member of the olivine solid solution series. It
Forsterite
Green gem-quality mineral
variety of olivine, specifically the magnesium rich end member called forsterite. Peridot is one of the few gemstones that occur in only one color. Peridot
Peridot
Blue to purple variety of the mineral zoisite
will cause both windows to appear the same color (violet). Synthetic forsterite (Mg2SiO4, the magnesium-rich end-member of olivine) has also been sold
Tanzanite
Mineral of magnesium iron silicate
expressed as molar percentages of forsterite (Fo) or fayalite (Fa) (e.g., Fo70Fa30, or just Fo70 with Fa30 implied). Forsterite's melting temperature is unusually
Olivine
NASA infrared space telescope (2003–2020)
indicate that tiny forsterite crystals might be falling down like rain on to the protostar HOPS-68. The discovery of the forsterite crystals in the outer
Spitzer_Space_Telescope
Iron end-member of olivine, a nesosilicate mineral
Fayalite forms solid solution series with the magnesium olivine endmember forsterite (Mg2SiO4) and also with the manganese rich olivine endmember tephroite
Fayalite
First planet from the Sun
dominated by iron-poor pyroxene and olivine, as represented by enstatite and forsterite, respectively, along with sodium-rich plagioclase and minerals of mixed
Mercury_(planet)
Similarity of symmetry and shape
Forsterite
Isomorphism_(crystallography)
Group of metamorphic rocks
tremolite, talc, and forsterite for the albite-epidote hornfels facies; calcite, dolomite, quartz, tremolite, diopside, and forsterite for the hornblende
Hornfels
Abbreviated notation for chemical formulas of common oxides
works. Hydration of belite in cement (analogous to forsterite hydration) Hydration reaction of forsterite (olivine) in serpentinisation Locher, Friedrich
Cement_chemist_notation
Mineral at the end of a mineral series
two or more endmembers in a group or series of minerals. For example, forsterite (Mg 2SiO 4) and fayalite (Fe 2SiO 4) are the two end-members of the olivine
Endmember
High-pressure phase of magnesium silicate
contain iron and hydrogen. It is polymorphous with the olivine phase forsterite (a magnesium iron silicate). Ringwoodite is notable for being able to
Ringwoodite
Innermost Galilean moon of Jupiter
the mantle is composed of at least 75% of the magnesium-rich mineral forsterite, and has a bulk composition similar to that of L-chondrite and LL-chondrite
Io_(moon)
Most commonly encountered form of asbestos
is complete at about 750 °C (1,380 °F), with the final products being forsterite (magnesium silicate), silica and water. The global mass balance reaction
Chrysotile
Melting points of chemical mixtures
phases (like a slurry). Such is the case, for example, with the olivine (forsterite-fayalite) system, which is common in Earth's mantle. In chemistry, materials
Liquidus_and_solidus
Harar
grandidierite, sinhalite, hyalophane, uvite, pargasite, clinozoisite, forsterite, warwickite and graphite. List of minerals Warr, L.N. (2021). "IMA–CNMNC
Serendibite
Chemical compound
formula Mg2SiO4. It is the orthosilicate salt of magnesium. It exists as forsterite in nature. Magnesium orthosilicate is made by the fusion of stoichiometric
Magnesium_orthosilicate
Deterioration of rocks and minerals through exposure to the elements
example, forsterite (magnesium olivine) is hydrolyzed into solid brucite and dissolved silicic acid: Mg2SiO4 + 4 H2O ⇌ 2 Mg(OH)2 + H4SiO4 forsterite + water
Weathering
National gemstone of Ireland
supplemented with variable amounts of diopside,serpentine, tremolite, forsterite, clinochlore, phlogopite, omphacite and talc. The colour is determined
Connemara_marble
Partitioning of elements in a mineral
Forsterite olivine, a magnesium iron silicate mineral formed in Earth's upper mantle
Compatibility_(geochemistry)
Planetary-mass object in the constellation Pisces
measured to be 33.4 ±3.9°. In 2023 a team found that SIMP0136 has patchy forsterite (Mg2SiO4) clouds above an iron cloud deck. This patchy cloud layer covers
SIMP_J013656.5+093347
and epidote. In ultramafic rocks the assemblage is serpentine, talc, forsterite, tremolite and chlorite. In argillaceous sedimentary rocks the assemblage
Prehnite-pumpellyite_facies
Dust around a star
been observed to include, "almost pure crystalline Mg-rich silicates (forsterite and clinoenstatite), amorphous silicates, diopside, spinel, oxides (corundum
Circumstellar_dust
Life arising from non-living matter
3SiO2 + 2H2 Reaction 2: Forsterite + aqueous silica → serpentine 3Mg2SiO4 + SiO2 + 4H2O → 2Mg3Si2O5(OH)4 Reaction 3: Forsterite + water → serpentine +
Abiogenesis
in the olivine series composed of 70% to 90% fayalite and 30% to 10% forsterite or Fe/(Fe+Mg) ratio of 0.7 to 0.9. It is from the obsolete hortonolite
Ferrohortonolite
Industrial mineral
⏟ Forsterite + 3 H 2 O ⏟ Water ⟶ Mg 3 Si 2 O 5 ( OH ) 4 ⏟ serpentine + Mg ( OH ) 2 ⏟ brucite {\displaystyle {\ce {\underbrace{2 Mg2SiO4}_{Forsterite
Belite
sunstone Fergusonite Ferroaxinite Fluorapatite Fluorapophyllite Fluorite Forsterite Friedelite Gadolinite Gahnite Gahnospinel Garnet group: Pyralspite Almandine
List_of_gemstones_by_species
Hydrocarbon compound (CH4) in natural gas
between forsterite and fayalite whose general formula is (Fe,Mg)2SiO4. The reaction producing methane from olivine can be written as: Forsterite + Fayalite
Methane
Alumino-silicate mineral whose blue colour is due to a sulfide species and not copper
limestone and is typically associated with calcite, pyrite, diopside, humite, forsterite, hauyne and muscovite. Other blue minerals, such as the carbonate mineral
Lazurite
Crystalline chemical element or compound formed by geologic processes
magnesium-rich and iron-rich end-members are considered separate minerals (forsterite and fayalite). The details of these rules are somewhat controversial.
Mineral
Japanese philanthropist and entrepreneur (1932–2022)
There, he was important in several developments, including the use of forsterite as an insulator for high frequency radio waves, its use for mass production
Kazuo_Inamori
Dark vesicular volcanic rock
Secondary Plagioclase, amphibole, pyroxene, magnetite, hematite, and olivine (forsterite)[citation needed] Texture Vesicular and glassy to aphanitic, sometimes
Scoria
Chemical solution in solid form
iron varies between the two endmembers of the solid solution series: forsterite (Mg-endmember: Mg2SiO4) and fayalite (Fe-endmember: Fe2SiO4) but the ratio
Solid_solution
Fringe theory about the origin of petroleum
into serpentine in the presence of carbon dioxide. Olivine, composed of Forsterite and Fayalite metamorphoses into serpentine, magnetite and silica by the
Abiogenic_petroleum_origin
Topics referred to by the same term
of a ring oscillator First-order logic, a system of mathematical logic Forsterite, magnesium-rich end-member in the olivine solid solution series Fourier
FO
Impure form of polycrystalline diamond
diamonds contain inclusions of common mantle minerals such as pyrope and forsterite, but such mantle minerals have not been observed in carbonado. In contrast
Carbonado
Dust floating in space
and consist of quench crystals of magnesian olivine, relict crystals of forsterite, and iron-bearing olivine within glass". In the UK, scientists look for
Cosmic_dust
By-product of iron and steel-making
iron production, the flux consists mostly of a mixture of limestone and forsterite or in some cases dolomite. In the blast furnace the slag floats on top
Ground granulated blast-furnace slag
Ground_granulated_blast-furnace_slag
Amphibole, double-chain inosilicate mineral
minerals include calcite, dolomite, grossular, wollastonite, talc, diopside, forsterite, cummingtonite, riebeckite, and winchite. Tremolite was first described
Tremolite
The unit cell is somewhat larger than for the calcium free olivines forsterite and fayalite with a = 0.4815 nm, b = 1.108 nm and c = 0.637 nm, and for
Monticellite
The mineral Forsterite is named for him. Frondel, Clifford (March 1972). "Jacob Forster (1739-1806) and his connections with forsterite and palladium
Jacob_Forster
2024 meteoroid
al. FeO-free enstatite 76 ±3 vol% albitic plagioclase 15.0 ±2.5 vol% forsterite 5.5 ±1.5 vol% opaque phases a) Metals, including kamacite with Nickel-rich
2024_BX1
Rock that was subjected to heat and pressure
470 °F). All three have the identical composition, Al2SiO5. Likewise, forsterite is stable over a broad range of pressure and temperature in marble, but
Metamorphic_rock
Hot semifluid material found beneath the surface of Earth
crystals of olivine and diopside that crystallized out of a cooling melt of forsterite, diopside, and silica would sink through the melt on geologically relevant
Magma
collinsite, magnesite, dolomite, hydrotalcite, apatite, magnetite, and forsterite. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical
Kovdorskite
When a solid substance does not melt uniformly
mineral that can melt incongruently is enstatite (Mg2Si2O6), which produces forsterite (Mg2SiO4) in addition to a melt richer in SiO2 when melting at low pressure
Incongruent_melting
between tephroite and its analogues, the group endmembers fayalite and forsterite. Divalent iron or magnesium may readily replace manganese in the olivine
Tephroite
Study of magnetic properties of minerals
-14 to -60 gypsum -13 to -29 ice -9 orthoclase -13 to -17 magnesite -15 forsterite -12 halite -10 to -16 galena -33 quartz -13 to -17 celestine -16 to -18
Magnetic_mineralogy
Magnesium-rich igneous rock
and morphology. The usual cumulate mineralogy is highly magnesium rich forsterite olivine, though chromian pyroxene cumulates are also possible (though
Komatiite
Substellar object
Whiteford, Niall; Gaarn, Josefine; Park, Grace (2023-02-01). "Patchy Forsterite Clouds in the Atmospheres of Two Highly Variable Exoplanet Analogs". The
Brown_dwarf
Main-belt asteroid
that its surface contains iron-bearing pyroxene such as orthopyroxene or forsterite. This makes Nysa a member of the E(III) subclass of E-type asteroids,
44_Nysa
Formation of serpentinite by hydration and metamorphic transformation of olivine
a solid solution of forsterite, the magnesium endmember of (Mg2+, Fe2+)2SiO4, and fayalite, the iron endmember, with forsterite typically making up about
Serpentinization
Mg2Al(AlSiO5)(OH)4 amesite Mg2P2O7 magnesium pyrophosphate 13446-24-7 Mg2SiO4 forsterite 10034-94-3 Mg3As2 magnesium arsenide 12044-49-4 Mg3Bi2 magnesium bismuthide
Glossary_of_chemical_formulae
hydrous forsterite were measured up to 14.1 GPa at ambient temperature. This study showed that aggregate bulk and shear moduli of hydrous forsterite increase
Resonant ultrasound spectroscopy
Resonant_ultrasound_spectroscopy
minerals include dolomite, calcite, tremolite, grossular, wollastonite, forsterite, monticellite, cuspidine, fluoborite, ludwigite, fluorite and phlogopite
Norbergite
Quasicrystalline mineral
Koryak Mountains, Russia. The rock sample also contains spinel, diopside, forsterite, nepheline, sodalite, corundum, stishovite, khatyrkite, cupalite and an
Icosahedrite
Brown dwarf star in the constellation Aquarius
The clouds on this brown dwarf are modelled as patchy, high-altitude forsterite cloud above a deeper, optically thick iron cloud. The silicate clouds
2MASS_J21392676+0220226
Rock-forming minerals with predominantly silicate anions
–examples include: Phenakite – Be2SiO4 Willemite – Zn2SiO4 Olivine group Forsterite – Mg2SiO4 Fayalite – Fe2SiO4 Tephroite – Mn2SiO4 Garnet group Pyrope –
Silicate_mineral
Magnesium titanium oxide mineral
include rutile, spinel, clinohumite, perovskite, diopside, serpentine, forsterite, brucite, hydrotalcite, chlorite and calcite. Warr, L.N. (2021). "IMA–CNMNC
Geikielite
Star in the constellation Ursa Major
4 AU, consisting of 0.25 μm grains of amorphous silicates or crystalline forsterite. There may also be a wider ring of larger (10 μm) grains out to a distance
Pi1_Ursae_Majoris
Storing carbon in a carbon pool
calcium and magnesium silicates (such as forsterite and serpentinite) and not as binary oxides. For forsterite and serpentine the reactions are: Mg 2SiO
Carbon_sequestration
Mineral assemblage in metamorphic rocks
talc (lower pressure and temperature) dolomite + calcite + diopside ± forsterite (higher pressure and temperature) The granulite facies is the highest
Metamorphic_facies
Australian geophysicist/chemist (1930–1993)
spinel form of (Mg,Fe)2SiO4, Also in 1966, the transformation of pure forsterite (Mg2SiO4) to spinel-like phase was achieved. In 1969 a new mineral was
Ted_Ringwood
Two barren outcrops in the Northwestern Hawaiian Islands
12 million years ago. The rock is dark grey and dense, and has a high forsterite content implying the magma source was at 1,703 ± 56 °C (3,097 ± 101 °F)
Gardner_Pinnacles
Island in Foul Bay, Egypt
Historic specimen of forsterite var. peridot, 1.3 cm × 0.7 cm × 0.4 cm (0.5 in × 0.3 in × 0.2 in). Mining of peridot seems to have begun around 300 BC
Zabargad_Island
Fluorellestadite Fluorite Fluororichterite (amphibole group) Fontarnauite Fornacite Forsterite (olivine group) Fougèrite (layered double hydroxide) Fourmarierite Fraipontite
List_of_minerals
Asteroid spectral type
mainly of iron-poor minerals such as enstatite (magnesium-rich pyroxene), forsterite (magnesium-rich olivine) and feldspar. Asteroid spectral types L-type
E-type_asteroid
Clifford (March 1972). "Jacob Forster (1739-1806) and his connections with forsterite and palladium" (PDF). Mineralogical Magazine. 38 (297): 545–50. Bibcode:1972MinM
Henry_Heuland
French mathematician and mineralogist
mineral species, such as babingtonite, beudantite, brochantite, brookite, forsterite, phillipsite, roselite and willemite. Lévyne was named after him. Le Cléac'h
Armand_Lévy_(mineralogist)
Process of rock formation
concentrations in melts are among the variables that determine whether forsterite olivine or enstatite pyroxene is precipitated, but the water content and
Fractional crystallization (geology)
Fractional_crystallization_(geology)
Asteroid with an inclusion with high quantities of calcium and aluminium
melilite, perovskite, aluminous spinel, hibonite, calcic pyroxene, and forsterite-rich olivine. Using the lead-lead isotope chronometer ('Pb–Pb dating')
Calcium–aluminium-rich inclusion
Calcium–aluminium-rich_inclusion
few years before 2004 Decreased mid-infrared flux and disappearance of forsterite emission Fomalhaut A3V 440 no Early 2004 Two bodies of ≥110 km in size
List of extrasolar planetary collisions
List_of_extrasolar_planetary_collisions
Round grain found in chondrites, stony meteorites
iron oxide (FeO), resulting in olivine and pyroxene that are close to forsterite (Mg2SiO4) and enstatite (MgSiO3) in composition. These are commonly called
Chondrule
Branch of the geology of Mars
aeolian deposits. However, the mudstone has far less Fe-forsterite plus magnetite, so Fe-forsterite (type of olivine) was probably altered to form smectite
Composition_of_Mars
Chondritic meteorite that fell in 1879 in a remote area of Queensland, Australia
that might occur within Earth's mantle. Ringwoodite, the high pressure forsterite polymorph named after Ted Ringwood, was discovered in fragments of the
Tenham_(meteorite)
Chemical compound
the water of hydration. Unlike natural magnesium silicates like talc, forsterite, and olivine which are crystalline, synthetic magnesium silicates are
Synthetic_magnesium_silicate
Grouping of asteroids
following types: E-type – with high albedo (> 0.30), composed of enstatite, forsterite and feldspar. They are found in the inner main belt. M-type – the largest
X-type_asteroid
Metal casting process using sand as the mold material
sand for aluminum typically uses olivine sand (a mixture of the minerals forsterite and fayalite, which is made by crushing dunite rock). The choice of sand
Sand_casting
Extrasolar planet
iron. The evaporating minerals could condense into enstatite (MgSiO3) or forsterite (Mg2SiO4). An earlier work did however find that the modelling of the
K2-22b
Exoplanet in the Neptunian Desert
can be best described as composed of MgSiO3 (enstatite) and Mg2SiO4 (forsterite). The study also detected water vapor in the atmosphere in the form of
LTT_9779_b
Active volcano in Arusha Region, Tanzania
S. (1 December 2015). "Liquid immiscibility during crystallization of forsterite–phlogopite ijolites at Oldoinyo Lengai Volcano, Tanzania: study of melt
Ol_Doinyo_Lengai
Approach to carbon sequestration
releases CO2 from the limestone.[clarification needed] In particular, forsterite (a silicate mineral) is dissolved through the reaction: Mg2SiO4(s) + 4H2CO3(aq)
Enhanced_weathering
System of detailed crystal structure classification
group Description S11 ZrSiO4 I41/amd Zircon structure S12 Mg2SiO4 Pnma Forsterite structure S13 Be2SiO4 R3 Phenakite structure S14 Al2Ca3Si3O12 Ia3d Garnet
Strukturbericht_designation
Young brown dwarf with a protoplanetary disk
grains with sizes of less than a few microns. The crystalline minerals forsterite and enstatite were identified from emission. Most of the dust mass of
2MASS_J04442713+2512164
Region around stars where hot Neptunes are rare
dayside hemisphere, with highly reflective white silicate (enstatite and forsterite) clouds on the western dayside (albedo 0.79±0.15) and a darker eastern
Neptunian_desert
Small vesicles in the xenolith are found to host titanite, enstatite, forsterite, and other minerals including klöchite. Klöchite has also been found in
Klöchite
Young binary in constellation Centaurus
Meeus, G.; De Koter, A. (2004), "Tentative detection of micron-sized forsterite grains in the proto-planetary disk surrounding HD 100453", Astronomy &
HD_100453
Iranian businessman
Purbolaksono, J.; Hamdi, M.; Hassan, M.A.; Hassan, M.A. (2013). "Nanocrystalline forsterite for biomedical applications: Synthesis, microstructure and mechanical
Alireza_Yaghoubi
Reef near the Atlantic isle of Rockall
coarser-grained facies. Mineral constituents include unaltered, colourless forsterite, pale green to pale brown pyroxene (endiopside) and plagioclase (bytownite)
Helen's_Reef
T-Tauri star
spectral features of crystalline silicates, including strong indications of forsterite. The features resembled those seen in comets and some protoplanetary disks
EX_Lupi
Ffllk Fichtelite Fic Fornacite For Ferri-ghoseite Fgh Fiedlerite Fie Forsterite Fo Ferri-hellandite-(Ce) Fhld-Ce Fiemmeite Fmm Foshagite Fos Ferrihollandite
List_of_mineral_symbols
Event timeline of the NASA Mars Science Laboratory mission
aeolian deposits. However, the mudstone has far less Fe-forsterite plus magnetite, so Fe-forsterite (type of olivine) was probably altered to form smectite
Timeline of Mars Science Laboratory
Timeline_of_Mars_Science_Laboratory
contact metamorphic deposits. It occurs in association with magnetite, forsterite, clinohumite, the borates vonsenite and szaibelyite, and as inclusions
Ludwigite
Changes of rock due to pressure and heat near a subduction zone
substantial mantle melting. The reaction is listed below. Antigorite = Forsterite + Enstatite + H2O Transition into the eclogite facies is proposed to be
Subduction_zone_metamorphism
Type of mineral
magnesite from the Mars-derived ALH84001 meteorite. Magnesium-rich olivine (forsterite) favors production of magnesite from peridotite. Iron-rich olivine (fayalite)
Magnesite
Geologic process in formation of some igneous rocks
mafic and ultramafic melts, the MgO and SiO2 contents determine whether forsterite olivine is precipitated or whether enstatite pyroxene is precipitated
Igneous_differentiation
Brown dwarf or exoplanet with atmospheric methane
Whiteford, Niall; Gaarn, Josefine; Park, Grace (2023-02-01). "Patchy Forsterite Clouds in the Atmospheres of Two Highly Variable Exoplanet Analogs". The
T_dwarf
Star in the constellation Hercules
that the minerals ferrosilite (28.3%), amorphous olivine (24.1%) and forsterite (12.6%) have the highest mass fraction. Additionally the emission in the
GD_362
Exoplanet orbiting the young HD 95086
95086 b contains large amounts of dust, probably small, sub-micrometer forsterite grains. The planet is very red in color, possibly due to the presence
HD_95086_b
Examples: wadsleyite (Mg2SiO4) a sorosilicate and high pressure polymorph of forsterite and ringwoodite; leucophanite (NaCaBeSi2O6F), but it has Nickel-Strunz
List of minerals recognized by the International Mineralogical Association
List_of_minerals_recognized_by_the_International_Mineralogical_Association
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