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Topic: Spodumene

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	SPODUMENE Factsheet & Information Page at mineralminers.com
		The color in the gem varieties of spodumene is due to impurities of iron (producing yellow to green colored spodumene), chromium (producing medium-deep green colored spodumene) or manganese (producing pink to lilac spodumene), all substituting for aluminum in the crystal structure.
		Spodumene is recognized by its prismatic cleavage on {110} and parting on {100}, and by its pegmatitic occurance.
		Spodumene is a major source of lithium, which has a great variety of uses including in the manufacture of lubricants, ceramics, batteries, welding supplies, experimental fuels and in anti-depressant drugs.
	www.mineralminers.com /html/spominfo.htm (747 words)

	SPODUMENE - LoveToKnow Article on SPODUMENE (Site not responding. Last check: 2007-10-13)
		Spodumene crystallizes in the monoclinic system, the crystals having generally a prismatic habit and being often striated longitudinally.
		Common spodumene is used as a source of lithium in chemical pteparations.
		The spodumene occurred in large quantity, in a vein of albite-granite, associated with apatite, garnet, columbite, pitchblende and other uranium minerals, together with several species of manganese phosphates, termed eosphorite, triploidite, dickinsonite, lithiophilite, natrophilite, reddingite, fairfieldite and fillowite.
	www.1911encyclopedia.org /S/SP/SPODUMENE.htm (813 words)

	Gems - Spodumene, Iolite, Benitoite Spodumene
		Unlike spodumene in general, kunzite is phosphorescent under the influence of radium.
		Spodumene is ordinarily rather a pale yellowish in hue, and, as its name (which is derived from, ash-coloured) suggests, is not very attractive.
		Spodumene has an easy cleavage, and the cut stones call therefore for careful handling, lest they be flawed or fractured.
	www.oldandsold.com /articles19/gems-21.shtml (881 words)

	Astrology & Gemstones, Birthstones: Spodumene Gem for Pisces - Gems shop online
		Spodumene is a pyroxene mineral consisting of lithium aluminum silicate.
		Spodumene is known for its strong pleochroism, showing lighter and more intense coloring when viewed at different angles.
		Spodumene is a relatively new mineral to science, being discovered in the last three centuries and gem varieties have only been discovered in the last 120 years.
	www.findyourfate.com /gemology/gemstones/Spodumene.html (203 words)

	Noah Gilbertson
		Spodumene is a name taken from the Greek word "spodoumenos" which means burnt to ash, because of it ashy-like appearance.
		Spodumene is often found in granite pagmatites with potassium feldspars, muscovite, quartz, tourmaline, beryl, and lepidolite.
		Spodumene may be difficult to identify using cleavage, hardness, and color because it is easily confused with feldspar or scapolite.
	www.und.nodak.edu /instruct/mineral/geol318/webpage/gilber (349 words)

	About the History and Properties of Kunzite Gems
		The spodumene crystals found near Pala are of extraordinary size, one weighing thirty-one ounces, troy; the dimensions of this crystal were 18 x 8 x 3 centimetres.
		The chemical composition of spodumene is: silica, 64.5; alumina, 27.4; and lithia, 8.4.
		Spodumene is commonly white or grey, and because of that it was named, the word spodumene being derived from the Greek spodios, meaning ash-coloured.
	www.jjkent.com /articles/history-properties-kunzite.htm (1017 words)

	Spodumene -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-13)
		Spodumene occurs in lithium rich (Plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz) granites and (A form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements) pegmatites.
		Transparent material has long been used as a (A crystalline rock that can be cut and polished for jewelry) gemstone with varieties kunzite and hiddenite noted for their strong (The phenomenon of different colors appearing when certain crystals are viewed from different directions) pleochroism.
		Hiddenite is a green variety of spodumene first discovered at the Rist-Ellis mine in Hiddenite, (A state in southeastern United States; one of the original 13 colonies) North Carolina, USA.
	www.absoluteastronomy.com /encyclopedia/s/sp/spodumene.htm (648 words)

	Spodumene Mineral Data
		Spodumene is from the Greek, spodoumenos, "burnt to ash," alluding to the ashy color of early specimens.
		Warning: this large pop-up is very compute intensive and may not work well with some computers.
		Cameron M, Sueno S, Prewitt C T, Papike J J, American Mineralogist, 58 (1973) p.594-618, High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite,, spodumene, and ureyite, T = 24 C, pyroxene
	webmineral.com /data/Spodumene.shtml (242 words)

	The gemstone spodumene (Site not responding. Last check: 2007-10-13)
		In the gem trade, the term spodumene refers to all colors of this mineral excluding the pink variety kunzite and the green variety hiddenite.
		All other transparent forms of spodumene lack the appeal of those two varieties, and are rarely used as gems because of the difficulty involved in cutting them.
		Green spodumene from other localities is not gemologically accepted as true hiddenite, for it lacks the unique green color of true hiddenite, being only very light green or greenish-yellow.
	www.minerals.net /gemstone/gemstone/spodumen/spodumen.htm.backup (285 words)

	Spodumene Stone,Spodumene Gemstones,Spodumene Gemstone Suppliers
		Spodumene is a green to pink or lilac shaded mineral that is used as a source of lithium and in transparent varieties as a gemstone.
		Spodumene is worked as an ore of lithium, but it is most highly prized as a gem material.
		Spodumene is a beautiful gemstone and care needs to be taken to successfully cut a stone without encountering a problem with the cleavage planes of the stone.
	www.semi-precious-stone.com /spodumene-stone.html (116 words)

	KUNZITE - LoveToKnow Article on KUNZITE (Site not responding. Last check: 2007-10-13)
		, a transparent lilac-colored variety of spodumene, used as a gem-stone.
		It was discovered in 1902 near Pala, in San Diego county, California, not far from the locality which yields the fine specimens of rubellite and lepidolite, well known to mineralogists.
		Analysis by R. Davis showed it to be a spodumene.
	www.1911encyclopedia.org /K/KU/KUNZITE.htm (140 words)

	Spiritual Empire - Hiddenite and Kunzite both come from the miniral spodumene (Site not responding. Last check: 2007-10-13)
		Spodumene is the mineral composing two comparatively new and charming gems, Hiddenite and Kunzite.
		Ordinarily spodumene is of a white or grey colour, and possesses no great value as a gem, but in its rarer form as hiddenite it possesses a beautiful emerald-green colour.
		Think of the chance conjunction in nature of the peculiar chemical properties forming the mineral, then the centuries of the infinitesimal growth of the crystals from these solutions, and finally when the whole had reached its last stage of perfection, its chance discovery through the prick of the miner's pickaxe.
	www.spiritualempire.com /articles/gems_gemstones_rare_stones_and_crystals/hiddenite_and_kunzite_both_come_from_the_miniral_spodumene.html (321 words)

	SDNHM - Spodumene
		Spodumene forms as flattened, prism-shaped crystals that can be very large, up to 16 meters long and weighing several tons.
		Spodumene can be colored white, gray, yellowish, green (hiddenite), and pink to purple (kunzite).
		Common forms of spodumene are an important source of lithium.
	www.sdnhm.org /fieldguide/minerals/spodumene.html (147 words)

	The Giant Crystal Project : Spodumene from the Etta Mine, South Dakotah (Site not responding. Last check: 2007-10-13)
		In the Etta however the tin boom at least proved the existence of large quantities of the lithium ore spodumene, which was mined separately since 1898.
		These spodumene logs reached remarkable dimensions, whereas the first reference of the logs at the Etta mine was by Blake in 1883.Frank Hess in 1939, investigating rare minerals for the Bureau of Mines described these incredible crystals :
		Spodumene crystals of similar dimension were abundantly found in the course of lithium exploitation at Etta.
	giantcrystals.strahlen.org /america/etta.htm (616 words)

	The Giant Crystal Project : Spodumene from the Harding Mine, New Mexico (Site not responding. Last check: 2007-10-13)
		As in the famous Etta mine we have giant - though somewhat smaller - spodumene crystals in a quartz - feldspar pegmatite, which were and which still are (!) beautifully exposed in a long mine wall.
		Spodumene and Iceland Spar Calcite as giant crystals with feldspar, mica and other minerals as pegmatite matrix.
		The slender spodumene laths reach several m in lenght, while anhedral icelandic spar (calcite) crystals of up to 40 tons (no dimensions given) are recorded.
	giantcrystals.strahlen.org /america/harding.htm (450 words)

	Haapaluoma, Finland
		Microcline, quartz, albite, biotite, muskovite, Lepidolite, cookeite, apatite, amblygonite, varulite, loellingite, kassiterite, columbite, microlite, schoerl, Elbaite (verdelite, rubellite), beryl, topaz, garnet (almandine, spessartine), zircon, spodumene (variety kunzite).
		Spodumene occured in three different forms, this first fresh form in easily cleavable masses, as more corroded crystals (see next picture) and in the form of kunzite.
		This is an example of the more corroded spodumene that could be found in Haapaluoma.
	www.geology.neab.net /locality/finland/haapaluo.htm (223 words)

	SPODUMENE (Lithium Aluminum Silicate)
		Spodumene is a rock forming mineral in granites and pegmatites that bear other lithium minerals.
		Spodumene is strongly pleochroic and therefore a gem cutter must take care to orient the stone in the best position for the deepest color.
		Spodumene's cleavage, parting and fracture also make it a challenge for any gem cutter.
	mineral.galleries.com /minerals/silicate/spodumen/spodumen.htm (325 words)

	Table of lithologic units html (Site not responding. Last check: 2007-10-13)
		This zone underlies the quartz zone and is composed of long bladed spodumene laths supported by a massive quartz matrix.
		The spodumene laths are arranged in a jack-straw fashion and locally are subperpendicular to the hanging- wall contact.
		This zone is composed of an even-grained (1-10 cm) aggregate of primary quartz, microcline, spodumene, finer albite, and scattered millimeter-size uranium-rich microlite crystals.
	epswww.unm.edu /harding/mineral/lith_tbl.htm (523 words)

	The mineral spodumene
		The two Spodumene varieties, Kunzite and Hiddenite, are valued as gems.
		Spodumene is one of the most important ores of lithium.
		Other famous Spodumene localities are the Foote Spodumene mine, Kings Mountain., Cleveland Co., North Carolina; the Harding Mine, near Dixon, Taos Co., New Mexico; and Newry, Oxford Co., Maine.
	www.minerals.net /mineral/silicate/ino/pyroxene/spodumen/spodumen.htm (361 words)

	L.H. Conklin - On Kunz & Kunzite
		The pink or lilac-colored variety of spodumene is today universally known as kunzite, in honor of George Frederick Kunz.
		The mineral spodumene is generally known in large opaque whitish crystals, but occasionally it appears in small specimens that are transparent and richly colored.
		At the new locality spodumene crystals occur up to the size of a mans hand, entirely clear, and of a rosy lilac tint, varying with tile spodumene dichroism from a very pale tinge when looked at transversely, to, the prism, to a rich amethystine hue longitudinally.
	www.lhconklin.com /bio/publications/on_kunz.htm (2958 words)

	OTAVI Minerals (Site not responding. Last check: 2007-10-13)
		Spodumene is used as a flux in the glass, ceramic and metallurgic industry.
		Spodumen 7,5 CO is a concentrated product of the Lithium mineral Spodumene LiAl[Si2O6].
		Due to its chemical, mineralogical and physical properties it is used in the glass and ceramic-industry as a flux or property transformer.
	www.otavi.de /spodumene.htm (221 words)

	Spodumene - Gemstone Information (Site not responding. Last check: 2007-10-13)
		According to Webster's Gems, its name is derived from Greek meaning "burnt to ashes" because of appearance of the non-gem material.
		Spodumene occurs in a range of colours, yellow, grass green similar to emeralds, yellowish-green, lilac pink and light blue.
		The emerald green variety is known as hiddenite, the lilac coloured material is known as kunzite.
	www.24carat.co.uk /spodumene.html (105 words)

	SPODUMENE - Online Information article about SPODUMENE
		mineral, some varieties of spodumene are so brightly coloured and transparent as to be valued as See also:
		The spodumene occurred in large quantity, in a vein of See also:
		Thomson as killinite, appears to be an altered spodumene.
	encyclopedia.jrank.org /SOU_STE/SPODUMENE.html (567 words)

	[No title]
		The next series of tests was involved with using pyrophyllite and spodumene.
		The problem of iron content is very hard to overcome due to the fact that the iron is chemically combined in the crystal.
		Foote Mineral is now producing a low-iron spodumene for the glass industry, but it is not ground in mesh sizes for use in a clay body.
	www.studiopotter.org /articles/art0017.htm (1319 words)

	Spodumene products prices bentonites suppliers
		Spodumene a Lithium aluminosilicate mineral [Li2O.Al2O3.4SiO2] occur in pegmatite ore with quartz and minor impurities, such as feldspar.
		Spodumene in the most economic commercial mineral used as a source of Lithia [Li2O] or Lithium.
		For these reasons, Spodumene is used in a number of applications such as glass, ceramics, refractories, cement, metallurgy, casting and foundry moulds.
	www.spodumene.co.uk (214 words)

	The Mineral Market your source for Hiddenite (Site not responding. Last check: 2007-10-13)
		H105 Large lot of 105 crystals of Hiddenite from a documented find in 1972!Crystals range in size from 3/8 to 1 1/2 inches long and 1/16 to 1/2 inches wide.Most are terminated and facet grade!All have exceptional clarity with almost no inclusions!From Hiddenite,Alexander County,North Carolina.
		H4 SOLD Nice crystal of Hiddenite Spodumene with good color and clarity.Measures 1/2 x 3/16 inches.
		H56 SOLD Nice crystal of Hiddenite Spodumene with good color and clarity.Measures 1 13/16 x 1/2 inches.
	www.angelfire.com /rock/geodeland/hiddenite.html (235 words)

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