sphene


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sphene

 (sfēn)
n.
A titanium accessory mineral in some granite and metamorphic rocks, CaTiSiO5, occurring in usually small brown, yellow, or green crystals and sometimes used as a gemstone. Also called titanite.

[French sphène, from Greek sphēn, wedge.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sphene

(sfiːn)
n
(Minerals) a brown, yellow, green, or grey lustrous mineral consisting of calcium titanium silicate in monoclinic crystalline form. It occurs in metamorphic and acid igneous rocks and is used as a gemstone. Formula: CaTiSiO5. Also called: titanite
[C19: from French sphène, from Greek sphēn a wedge, alluding to its crystals]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sphene

(sfin)

n.
a mineral, calcium titanium silicate, CaTiSiO5, occurring as an accessory mineral in a variety of crystalline rocks.
[1805–15; < Greek sphḗn wedge]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Malik Saleem said that Pakistan has enormous wealth of expensive gems such as ruby, emerald, tourmaline, garnet, topaz, peridot, aquamarine, spinel, pargasite, diopside, moonstone, pink topaz, sapphire, zircon, feldspar, agate, serpentine jade, epidote, pink beryl (morganite), purple beryl, sphene, zoisite, lapis lazuli, turquoise, and kunzite etc.
Malik Shahid informed that Pakistan has enormous wealth of expensive gems such as ruby, emerald, tourmaline, garnet, topaz, peridot, aquamarine, spinel, pargasite, diopside, moonstone, pink topaz, sapphire, zircon, feldspar, agate, serpentine jade, epidote, pink beryl (morganite), purple beryl, sphene, zoisite, lapis lazuli, turquoise and kunzite etc and Pakistan could earn huge foreign exchange from exports of gems and jewelry.
These include salt, coal, copper, gold, iron, chromite, bauxite and various gemstones like peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite, xenotime, sphene, tourmaline, jade, onyx, marble, granite nephrite and many types of quartz.
Speakers from Ministry of Commerce and TDAP informed the audience that Pakistan has enormous wealth of expensive gems such as ruby, emerald, tourmaline, garnet, topaz, peridot, aquamarine, spinel, pargasite, diopside, moonstone, pink topaz, sapphire, zircon, feldspar, agate, serpentine jade, epidote, pink beryl (morganite), purple beryl, sphene, zoisite, lapis lazuli, turquoise, and kunzite etc.
The source informed that different varieties of minerals like Peridot, Aquamarine, Topaz in different colours of violet, pink, golden and champagne, Ruby, Emerald, rare-earth minerals Bastnaesite and Xenotime, Sphene, Tourmaline, besides many types of Quartz make the country prominent in the mineral world.
Prismatic lensoid hornblende and subordinate short, pyroxenes are also a major part of the essential mineral constituents, whereas biotite, apatite, sphene and opaques occur as accessories.
The wide-range of gemstones including sapphires from Kashmir, emeralds from Swat, rubies from the northern areas and pink topazes from Katlang, Mardan, and good quality zircon, different varieties of quartz, aquamarine, tourmaline, sphene, spinel, zoisite apatite, epidote, morganite, garnet, scapolite, clino zoisite, xenotime, bastnaesite, peridot, nephrite, serpentine, red agate, diopside, pargasite, amethyst, scheelite, pollucite, chrome diopside and kunzite are found in mountainous belt from South Waziristan to Chitral, makes the country significant in the mineral world.
Following the OEM-strategy to close the gap,' this cooperation also resulted in the Sphene, an MS JPK-based printer with a Stork dryer, software and inks.
In this paper, accessory minerals such as zircon, sphene and apatite are studied in Ghareh Gheshlagh area.