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Spodumene is the name of a mineral species that includes two very special gems varieties: kunzite and hiddenite. Spodumene is named from the Greek spodoumenos, meaning "burnt to ash," which alludes to the ashy color of many specimens. A member of the pyroxene group, spodumene belongs to a class of minerals called silicates and it is one of a small …
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Spodumene is a pyroxene mineral that is typically found in lithium-rich pegmatites. It is usually associated with other lithium minerals such as lepidolite, eucryptite, and petalite. Spodumene has a chemical composition of LiAlSi 2 O 6 but small amounts of sodium sometimes substitute for lithium.
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Spodumene Kunzite is the best-known variety of spodumene. Others are green hiddenite and yellow triphane. A "New" Gem Kunzite was first recognized as a unique variety of spodumene around 1902. Lithium The pegmatites that yield kunzite are also a source of lithium. Facts Mineral: Spodumene Chemical composition: LiAlSi 2 O 6
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Spodumene is a lithium aluminum silicate mineral usually found in pegmatite veins. In its natural opaque form, Spodumene is worked as a lithium ore and processed into different grades for use in ceramics, glass, batteries, steel, fluxing agents and medicine.
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Spodumene has perfect cleavage in two directions, making it exceptionally difficult to cut. One also has to consider this when creating jewelry. The cleavage direction is right on the girdle, so great care needs to be taken when tightening prongs. (See Cutting Kunzite for more information.) Also consider how it will be worn.
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Kunzite is the pink to light purple gem variety of the mineral Spodumene. Spodumene is a common mineral, but only in several localities does it occur in transparent gem form. The main gem form of Spodumene is Kunzite, the other is the rarer Hiddenite. Yellow and colorless gem forms of Spodumene also exist, but are not commonly faceted as …
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Spodumene is a fairly prevalent mineral, but mostly dull and uninteresting in its most common forms. However, its two distinctly colored transparent varieties, Kunzite (pink) and Hiddenite (green) are very aesthetic and valued as gemstone s. Hiddenite is much rarer than Kunzite, and can is highly valued, especially the deeper green color forms.
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Spodumene var. Kunzite. specimen number: 9051003. location: San Pedro Mine, Heriot, San Diego Co., California, USA. description: Beautiful loose gem crystal of pale purple kunzite complete all around and terminated naturally on both ends. In great condition. Previous label dates this piece to March 4, 1951. Weighs 50.59 g.
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Spodumene was first described in 1800 for an occurrence in the type locality in Utö, Södermanland, Sweden. It was discovered by Brazilian naturalist Jose Bonifacio de Andrada e Silva . The name is derived from the Greek spodumenos (σποδούμενος), meaning "burnt to ashes", owing to the opaque ash-grey appearance of material refined for use in industry.
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Kunzite (Spodumene) Color: Pink, violet, cornflower-blue Moh's Hardness: 6-7 Refractive Index: 1.655-1.68 Critical Angle: 37.31° Specific Gravity: 3.16-3.20 Cleavage: perfect in 2 directions Fracture: Uneven, very splintery Dispersion: .017 Heat Sensitivity: Yes Birefringence (double refraction): Medium (.015) Crystal Structure: Monoclinic
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